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101102220220 = 2255055111011
BaseRepresentation
bin101111000101000101…
…0010111001110111100
3100122221222122221010211
41132022022113032330
53124024132021340
6114240135242204
710206256456351
oct1361212271674
9318858587124
10101102220220
1139971627501
1217716b19364
1396c2c89b61
144c715ba628
15296adad5ea
hex178a2973bc

101102220220 has 12 divisors (see below), whose sum is σ = 212314662504. Its totient is φ = 40440888080.

The previous prime is 101102220217. The next prime is 101102220229. The reversal of 101102220220 is 22022201101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101102220220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102220229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527555486 + ... + 2527555525.

It is an arithmetic number, because the mean of its divisors is an integer number (17692888542).

Almost surely, 2101102220220 is an apocalyptic number.

101102220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101102220220 is an abundant number, since it is smaller than the sum of its proper divisors (111212442284).

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

101102220220 is a wasteful number, since it uses less digits than its factorization.

101102220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055111020 (or 5055111018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101102220220 its reverse (22022201101), we get a palindrome (123124421321).

The spelling of 101102220220 in words is "one hundred one billion, one hundred two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5055111011 10110222022 20220444044 25275555055 50551110110 101102220220