21213364101046 has 16 divisors (see below), whose sum is σ = 34270397524944. Its totient is φ = 9790024712544.

The previous prime is 21213364100993. The next prime is 21213364101049. The reversal of 21213364101046 is 64010146331212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213364101049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31271245 + ... + 31942408.

It is an arithmetic number, because the mean of its divisors is an integer number (2141899845309).

Almost surely, 2^{21213364101046} is an apocalyptic number.

21213364101046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21213364101046 is a deficient number, since it is larger than the sum of its proper divisors (13057033423898).

21213364101046 is a wasteful number, since it uses less digits than its factorization.

21213364101046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63226575.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 21213364101046 in words is "twenty-one trillion, two hundred thirteen billion, three hundred sixty-four million, one hundred one thousand, forty-six".