202120212112001 has 4 divisors (see below), whose sum is σ = 202127961254832. Its totient is φ = 202112462969172.

The previous prime is 202120212111973. The next prime is 202120212112073. The reversal of 202120212112001 is 100211212021202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202120212112001 - 2¹⁴ = 202120212095617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120212112801) 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, 3874532291 + ... + 3874584456.

It is an arithmetic number, because the mean of its divisors is an integer number (50531990313708).

Almost surely, 2^{202120212112001} is an apocalyptic number.

It is an amenable number.

202120212112001 is a deficient number, since it is larger than the sum of its proper divisors (7749142831).

202120212112001 is an equidigital number, since it uses as much as digits as its factorization.

202120212112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749142830.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202120212112001 its reverse (100211212021202), we get a palindrome (302331424133203).

The spelling of 202120212112001 in words is "two hundred two trillion, one hundred twenty billion, two hundred twelve million, one hundred twelve thousand, one".