22212121210022 has 48 divisors (see below), whose sum is σ = 34088088566112. Its totient is φ = 10853142981120.

The previous prime is 22212121210009. The next prime is 22212121210043. The reversal of 22212121210022 is 22001212121222.

It is a junction number, because it is equal to n+sod(n) for n = 22212121209976 and 22212121210003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1482480743 + ... + 1482495725.

It is an arithmetic number, because the mean of its divisors is an integer number (710168511794).

Almost surely, 2^{22212121210022} is an apocalyptic number.

22212121210022 is a deficient number, since it is larger than the sum of its proper divisors (11875967356090).

22212121210022 is a wasteful number, since it uses less digits than its factorization.

22212121210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873 (or 15736 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22212121210022 its reverse (22001212121222), we get a palindrome (44213333331244).

The spelling of 22212121210022 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, twenty-two".