201000122111022 has 128 divisors (see below), whose sum is σ = 460091903096448. Its totient is φ = 57992056012800.

The previous prime is 201000122110981. The next prime is 201000122111077. The reversal of 201000122111022 is 220111221000102.

It is a junction number, because it is equal to n+sod(n) for n = 201000122110992 and 201000122111010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2629442322 + ... + 2629518762.

It is an arithmetic number, because the mean of its divisors is an integer number (3594467992941).

Almost surely, 2^{201000122111022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201000122111022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230045951548224).

201000122111022 is an abundant number, since it is smaller than the sum of its proper divisors (259091780985426).

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

201000122111022 is a wasteful number, since it uses less digits than its factorization.

201000122111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83814.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201000122111022 its reverse (220111221000102), we get a palindrome (421111343111124).

The spelling of 201000122111022 in words is "two hundred one trillion, one hundred twenty-two million, one hundred eleven thousand, twenty-two".