21112101022 has 16 divisors (see below), whose sum is σ = 32006171232. Its totient is φ = 10443456000.

The previous prime is 21112100993. The next prime is 21112101053. The reversal of 21112101022 is 22010121112.

It is a junction number, because it is equal to n+sod(n) for n = 21112100993 and 21112101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564063 + ... + 600325.

It is an arithmetic number, because the mean of its divisors is an integer number (2000385702).

Almost surely, 2^21112101022 is an apocalyptic number.

21112101022 is a deficient number, since it is larger than the sum of its proper divisors (10894070210).

21112101022 is a wasteful number, since it uses less digits than its factorization.

21112101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39363.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21112101022 its reverse (22010121112), we get a palindrome (43122222134).

The spelling of 21112101022 in words is "twenty-one billion, one hundred twelve million, one hundred one thousand, twenty-two".