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101212122210020 = 22537913352522719
BaseRepresentation
bin10111000000110101001000…
…100101110101111011100100
3111021100210011211002201020122
4113000311020211311323210
5101231224411241210040
6555132112420221112
730214222512006413
oct2700651045657344
9437323154081218
10101212122210020
112a281902436058
12b427706b3a798
134462353cb4293
141adc99b28b47a
15ba7b5d81b1b5
hex5c0d48975ee4

101212122210020 has 24 divisors (see below), whose sum is σ = 213106262611200. Its totient is φ = 40378028699232.

The previous prime is 101212122210011. The next prime is 101212122210029. The reversal of 101212122210020 is 20012221212101.

It is an interprime number because it is at equal distance from previous prime (101212122210011) and next prime (101212122210029).

It is not an unprimeable number, because it can be changed into a prime (101212122210029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6676253780 + ... + 6676268939.

It is an arithmetic number, because the mean of its divisors is an integer number (8879427608800).

Almost surely, 2101212122210020 is an apocalyptic number.

101212122210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212122210020 is an abundant number, since it is smaller than the sum of its proper divisors (111894140401180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101212122210020 is a wasteful number, since it uses less digits than its factorization.

101212122210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352523107 (or 13352523105 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101212122210020 its reverse (20012221212101), we get a palindrome (121224343422121).

The spelling of 101212122210020 in words is "one hundred one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 7580 13352522719 26705045438 53410090876 66762613595 133525227190 267050454380 5060606110501 10121212221002 20242424442004 25303030552505 50606061105010 101212122210020