22121211066115 has 32 divisors (see below), whose sum is σ = 30800121375744. Its totient is φ = 14937742258560.

The previous prime is 22121211066049. The next prime is 22121211066127. The reversal of 22121211066115 is 51166011212122.

It is not a de Polignac number, because 22121211066115 - 2²³ = 22121202677507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6004777 + ... + 8961013.

It is an arithmetic number, because the mean of its divisors is an integer number (962503792992).

Almost surely, 2^{22121211066115} is an apocalyptic number.

22121211066115 is a deficient number, since it is larger than the sum of its proper divisors (8678910309629).

22121211066115 is a wasteful number, since it uses less digits than its factorization.

22121211066115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959507.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 22121211066115 its reverse (51166011212122), we get a palindrome (73287222278237).

The spelling of 22121211066115 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred eleven million, sixty-six thousand, one hundred fifteen".