22112021212122 has 32 divisors (see below), whose sum is σ = 46151737256448. Its totient is φ = 7049459465136.

The previous prime is 22112021212121. The next prime is 22112021212129. The reversal of 22112021212122 is 22121212021122.

It is not an unprimeable number, because it can be changed into a prime (22112021212121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7222648 + ... + 9817875.

It is an arithmetic number, because the mean of its divisors is an integer number (1442241789264).

Almost surely, 2^{22112021212122} is an apocalyptic number.

22112021212122 is an abundant number, since it is smaller than the sum of its proper divisors (24039716044326).

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

22112021212122 is a wasteful number, since it uses less digits than its factorization.

22112021212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17049954.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22112021212122 its reverse (22121212021122), we get a palindrome (44233233233244).

The spelling of 22112021212122 in words is "twenty-two trillion, one hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred twenty-two".