22102121201022 has 12 divisors (see below), whose sum is σ = 47887929268920. Its totient is φ = 7367373733668.

The previous prime is 22102121200979. The next prime is 22102121201089. The reversal of 22102121201022 is 22010212120122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1227895622279 = 22102121201022 / (2 + 2 + 1 + 0 + 2 + 1 + 2 + 1 + 2 + 0 + 1 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22102121200986 and 22102121201004.

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, 613947811122 + ... + 613947811157.

It is an arithmetic number, because the mean of its divisors is an integer number (3990660772410).

Almost surely, 2^{22102121201022} is an apocalyptic number.

22102121201022 is an abundant number, since it is smaller than the sum of its proper divisors (25785808067898).

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

22102121201022 is a wasteful number, since it uses less digits than its factorization.

22102121201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227895622287 (or 1227895622284 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22102121201022 its reverse (22010212120122), we get a palindrome (44112333321144).

The spelling of 22102121201022 in words is "twenty-two trillion, one hundred two billion, one hundred twenty-one million, two hundred one thousand, twenty-two".