21312122301201 has 16 divisors (see below), whose sum is σ = 28996250944320. Its totient is φ = 13918851186240.

The previous prime is 21312122301191. The next prime is 21312122301209. The reversal of 21312122301201 is 10210322121312.

It is not a de Polignac number, because 21312122301201 - 2¹⁰ = 21312122300177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21312122301209) 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, 101593630 + ... + 101803191.

It is an arithmetic number, because the mean of its divisors is an integer number (1812265684020).

Almost surely, 2^{21312122301201} is an apocalyptic number.

It is an amenable number.

21312122301201 is a deficient number, since it is larger than the sum of its proper divisors (7684128643119).

21312122301201 is a wasteful number, since it uses less digits than its factorization.

21312122301201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203397536.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21312122301201 its reverse (10210322121312), we get a palindrome (31522444422513).

The spelling of 21312122301201 in words is "twenty-one trillion, three hundred twelve billion, one hundred twenty-two million, three hundred one thousand, two hundred one".