21101100001022 has 8 divisors (see below), whose sum is σ = 31655338600872. Its totient is φ = 10549320467400.

The previous prime is 21101100000961. The next prime is 21101100001141. The reversal of 21101100001022 is 22010000110112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21101100000994 and 21101100001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614745104 + ... + 614779427.

It is an arithmetic number, because the mean of its divisors is an integer number (3956917325109).

Almost surely, 2^{21101100001022} is an apocalyptic number.

21101100001022 is a deficient number, since it is larger than the sum of its proper divisors (10554238599850).

21101100001022 is a wasteful number, since it uses less digits than its factorization.

21101100001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229533114.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21101100001022 its reverse (22010000110112), we get a palindrome (43111100111134).

The spelling of 21101100001022 in words is "twenty-one trillion, one hundred one billion, one hundred million, one thousand, twenty-two".