20101121111022 has 32 divisors (see below), whose sum is σ = 46025047848192. Its totient is φ = 5733223939584.

The previous prime is 20101121110991. The next prime is 20101121111089. The reversal of 20101121111022 is 22011112110102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20101121110992 and 20101121111010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414705508 + ... + 414753975.

It is an arithmetic number, because the mean of its divisors is an integer number (1438282745256).

Almost surely, 2^{20101121111022} is an apocalyptic number.

20101121111022 is an abundant number, since it is smaller than the sum of its proper divisors (25923926737170).

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

20101121111022 is a wasteful number, since it uses less digits than its factorization.

20101121111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829460072.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20101121111022 its reverse (22011112110102), we get a palindrome (42112233221124).

The spelling of 20101121111022 in words is "twenty trillion, one hundred one billion, one hundred twenty-one million, one hundred eleven thousand, twenty-two".