22121202212122 has 32 divisors (see below), whose sum is σ = 37631550237120. Its totient is φ = 9668172648960.

The previous prime is 22121202212113. The next prime is 22121202212147. The reversal of 22121202212122 is 22121220212122.

It is a junction number, because it is equal to n+sod(n) for n = 22121202212093 and 22121202212102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8727504 + ... + 10973227.

It is an arithmetic number, because the mean of its divisors is an integer number (1175985944910).

Almost surely, 2^{22121202212122} is an apocalyptic number.

22121202212122 is a deficient number, since it is larger than the sum of its proper divisors (15510348024998).

22121202212122 is a wasteful number, since it uses less digits than its factorization.

22121202212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19703038.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22121202212122 its reverse (22121220212122), we get a palindrome (44242422424244).

The spelling of 22121202212122 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred two million, two hundred twelve thousand, one hundred twenty-two".