22101010121211 has 16 divisors (see below), whose sum is σ = 33686407423488. Its totient is φ = 12625894497600.

The previous prime is 22101010121161. The next prime is 22101010121221. The reversal of 22101010121211 is 11212101010122.

It is a happy number.

It is not a de Polignac number, because 22101010121211 - 2¹⁸ = 22101009859067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22101010121221) 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, 135505855 + ... + 135668856.

It is an arithmetic number, because the mean of its divisors is an integer number (2105400463968).

Almost surely, 2^{22101010121211} is an apocalyptic number.

22101010121211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22101010121211 is a deficient number, since it is larger than the sum of its proper divisors (11585397302277).

22101010121211 is a wasteful number, since it uses less digits than its factorization.

22101010121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271178602.

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

Adding to 22101010121211 its reverse (11212101010122), we get a palindrome (33313111131333).

The spelling of 22101010121211 in words is "twenty-two trillion, one hundred one billion, ten million, one hundred twenty-one thousand, two hundred eleven".