201121012112022 has 24 divisors (see below), whose sum is σ = 435953905357464. Its totient is φ = 67010843147904.

The previous prime is 201121012111991. The next prime is 201121012112063. The reversal of 201121012112022 is 220211210121102.

201121012112022 is a `hidden beast` number, since 201 + 1 + 210 + 1 + 211 + 20 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201121012111986 and 201121012112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457809848 + ... + 2457891675.

It is an arithmetic number, because the mean of its divisors is an integer number (18164746056561).

Almost surely, 2^{201121012112022} is an apocalyptic number.

201121012112022 is an abundant number, since it is smaller than the sum of its proper divisors (234832893245442).

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

201121012112022 is a wasteful number, since it uses less digits than its factorization.

201121012112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915703804 (or 4915703801 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201121012112022 its reverse (220211210121102), we get a palindrome (421332222233124).

The spelling of 201121012112022 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, one hundred twelve thousand, twenty-two".