22211022021121 has 16 divisors (see below), whose sum is σ = 22362159528576. Its totient is φ = 22060107207936.

The previous prime is 22211022021107. The next prime is 22211022021127. The reversal of 22211022021121 is 12112022011222.

It is a cyclic number.

It is not a de Polignac number, because 22211022021121 - 2³³ = 22202432086529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211022021127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1741078675 + ... + 1741091431.

It is an arithmetic number, because the mean of its divisors is an integer number (1397634970536).

Almost surely, 2^{22211022021121} is an apocalyptic number.

It is an amenable number.

22211022021121 is a deficient number, since it is larger than the sum of its proper divisors (151137507455).

22211022021121 is a wasteful number, since it uses less digits than its factorization.

22211022021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20568.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22211022021121 its reverse (12112022011222), we get a palindrome (34323044032343).

The spelling of 22211022021121 in words is "twenty-two trillion, two hundred eleven billion, twenty-two million, twenty-one thousand, one hundred twenty-one".