22010121021111 has 4 divisors (see below), whose sum is σ = 29346828028152. Its totient is φ = 14673414014072.

The previous prime is 22010121021103. The next prime is 22010121021113. The reversal of 22010121021111 is 11112012101022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22010121021111 - 2³ = 22010121021103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010121021113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668353503516 + ... + 3668353503521.

It is an arithmetic number, because the mean of its divisors is an integer number (7336707007038).

Almost surely, 2^{22010121021111} is an apocalyptic number.

22010121021111 is a deficient number, since it is larger than the sum of its proper divisors (7336707007041).

22010121021111 is an equidigital number, since it uses as much as digits as its factorization.

22010121021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336707007040.

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

Adding to 22010121021111 its reverse (11112012101022), we get a palindrome (33122133122133).

The spelling of 22010121021111 in words is "twenty-two trillion, ten billion, one hundred twenty-one million, twenty-one thousand, one hundred eleven".