21611122101463 has 16 divisors (see below), whose sum is σ = 22520279340000. Its totient is φ = 20712904909312.

The previous prime is 21611122101461. The next prime is 21611122101493. The reversal of 21611122101463 is 36410122111612.

It is a cyclic number.

It is not a de Polignac number, because 21611122101463 - 2¹ = 21611122101461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21611122101461) 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, 147122268 + ... + 147269086.

It is an arithmetic number, because the mean of its divisors is an integer number (1407517458750).

Almost surely, 2^{21611122101463} is an apocalyptic number.

21611122101463 is a deficient number, since it is larger than the sum of its proper divisors (909157238537).

21611122101463 is a wasteful number, since it uses less digits than its factorization.

21611122101463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184034.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 21611122101463 in words is "twenty-one trillion, six hundred eleven billion, one hundred twenty-two million, one hundred one thousand, four hundred sixty-three".