22121553311 has 16 divisors (see below), whose sum is σ = 25996312608. Its totient is φ = 18558288000.

The previous prime is 22121553299. The next prime is 22121553359. The reversal of 22121553311 is 11335512122.

It is a cyclic number.

It is not a de Polignac number, because 22121553311 - 2⁶ = 22121553247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121553361) 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, 534461 + ... + 574361.

It is an arithmetic number, because the mean of its divisors is an integer number (1624769538).

Almost surely, 2^22121553311 is an apocalyptic number.

22121553311 is a deficient number, since it is larger than the sum of its proper divisors (3874759297).

22121553311 is a wasteful number, since it uses less digits than its factorization.

22121553311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43802.

The product of its digits is 1800, while the sum is 26.

The spelling of 22121553311 in words is "twenty-two billion, one hundred twenty-one million, five hundred fifty-three thousand, three hundred eleven".