22221110011121 has 16 divisors (see below), whose sum is σ = 25427744067840. Its totient is φ = 19022531235840.

The previous prime is 22221110011091. The next prime is 22221110011147. The reversal of 22221110011121 is 12111001112222.

It is a cyclic number.

It is not a de Polignac number, because 22221110011121 - 2²² = 22221105816817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221110011121.

It is not an unprimeable number, because it can be changed into a prime (22221110011181) 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, 34018820 + ... + 34665866.

It is an arithmetic number, because the mean of its divisors is an integer number (1589234004240).

Almost surely, 2^{22221110011121} is an apocalyptic number.

It is an amenable number.

22221110011121 is a deficient number, since it is larger than the sum of its proper divisors (3206634056719).

22221110011121 is an equidigital number, since it uses as much as digits as its factorization.

22221110011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653264.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22221110011121 its reverse (12111001112222), we get a palindrome (34332111123343).

The spelling of 22221110011121 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred twenty-one".