22101021101211 has 64 divisors (see below), whose sum is σ = 32811872163840. Its totient is φ = 13149064212480.

The previous prime is 22101021101189. The next prime is 22101021101227. The reversal of 22101021101211 is 11210112010122.

It is a happy number.

It is not a de Polignac number, because 22101021101211 - 2²⁷ = 22100886883483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22101021101251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28899186 + ... + 29654088.

It is an arithmetic number, because the mean of its divisors is an integer number (512685502560).

Almost surely, 2^{22101021101211} is an apocalyptic number.

22101021101211 is a deficient number, since it is larger than the sum of its proper divisors (10710851062629).

22101021101211 is a wasteful number, since it uses less digits than its factorization.

22101021101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755196.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22101021101211 its reverse (11210112010122), we get a palindrome (33311133111333).

The spelling of 22101021101211 in words is "twenty-two trillion, one hundred one billion, twenty-one million, one hundred one thousand, two hundred eleven".