22121100111022 has 12 divisors (see below), whose sum is σ = 36472392332208. Its totient is φ = 10055045504900.

The previous prime is 22121100111007. The next prime is 22121100111041. The reversal of 22121100111022 is 22011100112122.

It is a junction number, because it is equal to n+sod(n) for n = 22121100110987 and 22121100111005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45704752054 + ... + 45704752537.

It is an arithmetic number, because the mean of its divisors is an integer number (3039366027684).

Almost surely, 2^{22121100111022} is an apocalyptic number.

22121100111022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121100111022 is a deficient number, since it is larger than the sum of its proper divisors (14351292221186).

22121100111022 is a wasteful number, since it uses less digits than its factorization.

22121100111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91409504615 (or 91409504604 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121100111022 its reverse (22011100112122), we get a palindrome (44132200223144).

The spelling of 22121100111022 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred million, one hundred eleven thousand, twenty-two".