22001020222122 has 48 divisors (see below), whose sum is σ = 49753164172608. Its totient is φ = 7013164213440.

The previous prime is 22001020222121. The next prime is 22001020222123. The reversal of 22001020222122 is 22122202010022.

22001020222122 is a `hidden beast` number, since 220 + 0 + 1 + 0 + 202 + 221 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (22001020222121) and next prime (22001020222123).

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 = 22001020222095 and 22001020222104.

It is not an unprimeable number, because it can be changed into a prime (22001020222121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4505779 + ... + 8018982.

It is an arithmetic number, because the mean of its divisors is an integer number (1036524253596).

Almost surely, 2^{22001020222122} is an apocalyptic number.

22001020222122 is an abundant number, since it is smaller than the sum of its proper divisors (27752143950486).

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

22001020222122 is a wasteful number, since it uses less digits than its factorization.

22001020222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12529035 (or 12529032 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22001020222122 its reverse (22122202010022), we get a palindrome (44123222232144).

The spelling of 22001020222122 in words is "twenty-two trillion, one billion, twenty million, two hundred twenty-two thousand, one hundred twenty-two".