22121211111010 has 32 divisors (see below), whose sum is σ = 43439297352192. Its totient is φ = 8043839210880.

The previous prime is 22121211110941. The next prime is 22121211111011. The reversal of 22121211111010 is 1011111212122.

It is not an unprimeable number, because it can be changed into a prime (22121211111011) 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, 793839 + ... + 6698701.

It is an arithmetic number, because the mean of its divisors is an integer number (1357478042256).

Almost surely, 2^{22121211111010} is an apocalyptic number.

22121211111010 is a deficient number, since it is larger than the sum of its proper divisors (21318086241182).

22121211111010 is a wasteful number, since it uses less digits than its factorization.

22121211111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938938.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 22121211111010 its reverse (1011111212122), we get a palindrome (23132322323132).

The spelling of 22121211111010 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred eleven thousand, ten".