22121102010222 has 24 divisors (see below), whose sum is σ = 47941209988464. Its totient is φ = 7371830572704.

The previous prime is 22121102010187. The next prime is 22121102010251. The reversal of 22121102010222 is 22201020112122.

It is a happy number.

22121102010222 is a `hidden beast` number, since 221 + 21 + 1 + 0 + 201 + 0 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22121102010195 and 22121102010204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155768503 + ... + 155910450.

It is an arithmetic number, because the mean of its divisors is an integer number (1997550416186).

Almost surely, 2^{22121102010222} is an apocalyptic number.

22121102010222 is an abundant number, since it is smaller than the sum of its proper divisors (25820107978242).

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

22121102010222 is a wasteful number, since it uses less digits than its factorization.

22121102010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311682904 (or 311682901 counting only the distinct ones).

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

Adding to 22121102010222 its reverse (22201020112122), we get a palindrome (44322122122344).

The spelling of 22121102010222 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, ten thousand, two hundred twenty-two".