21250600620001 has 2 divisors, whose sum is σ = 21250600620002. Its totient is φ = 21250600620000.

The previous prime is 21250600619959. The next prime is 21250600620049. The reversal of 21250600620001 is 10002600605212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18973202718976 + 2277397901025 = 4355824^2 + 1509105^2 .

It is a cyclic number.

It is not a de Polignac number, because 21250600620001 - 2⁷ = 21250600619873 is a prime.

It is not a weakly prime, because it can be changed into another prime (21250600620401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10625300310000 + 10625300310001.

It is an arithmetic number, because the mean of its divisors is an integer number (10625300310001).

Almost surely, 2^{21250600620001} is an apocalyptic number.

It is an amenable number.

21250600620001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21250600620001 is an equidigital number, since it uses as much as digits as its factorization.

21250600620001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 21250600620001 in words is "twenty-one trillion, two hundred fifty billion, six hundred million, six hundred twenty thousand, one".