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20012202122 = 211909645551
BaseRepresentation
bin10010101000110100…
…011111100010001010
31220122200111012102012
4102220310133202022
5311441110431442
613105442535522
71305630624413
oct225064374212
956580435365
1020012202122
11853a403720
123a660675a2
131b6c08a923
14d7bb8080a
157c1d7b582
hex4a8d1f88a

20012202122 has 8 divisors (see below), whose sum is σ = 32747239872. Its totient is φ = 9096455500.

The previous prime is 20012202113. The next prime is 20012202167. The reversal of 20012202122 is 22120221002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20012202097 and 20012202106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454822754 + ... + 454822797.

It is an arithmetic number, because the mean of its divisors is an integer number (4093404984).

Almost surely, 220012202122 is an apocalyptic number.

20012202122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20012202122 is a deficient number, since it is larger than the sum of its proper divisors (12735037750).

20012202122 is a wasteful number, since it uses less digits than its factorization.

20012202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909645564.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20012202122 its reverse (22120221002), we get a palindrome (42132423124).

The spelling of 20012202122 in words is "twenty billion, twelve million, two hundred two thousand, one hundred twenty-two".

Divisors: 1 2 11 22 909645551 1819291102 10006101061 20012202122