201102110122228 has 36 divisors (see below), whose sum is σ = 409387389187140. Its totient is φ = 86186418471552.

The previous prime is 201102110122187. The next prime is 201102110122229. The reversal of 201102110122228 is 822221011201102.

It can be written as a sum of positive squares in 2 ways, for example, as 152638068483684 + 48464041638544 = 12354678^2 + 6961612^2 .

It is a super-2 number, since 2×201102110122228² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102110122229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109673328 + ... + 111491896.

It is an arithmetic number, because the mean of its divisors is an integer number (11371871921865).

Almost surely, 2^{201102110122228} is an apocalyptic number.

201102110122228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201102110122228 is an abundant number, since it is smaller than the sum of its proper divisors (208285279064912).

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

201102110122228 is a wasteful number, since it uses less digits than its factorization.

201102110122228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382784 (or 2382775 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The spelling of 201102110122228 in words is "two hundred one trillion, one hundred two billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty-eight".