202120122012001 has 4 divisors (see below), whose sum is σ = 208640125947904. Its totient is φ = 195600118076100.

The previous prime is 202120122011999. The next prime is 202120122012019. The reversal of 202120122012001 is 100210221021202.

It is a happy number.

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 202120122012001 - 2¹ = 202120122011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120122012031) 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, 3260001967905 + ... + 3260001967966.

It is an arithmetic number, because the mean of its divisors is an integer number (52160031486976).

Almost surely, 2^{202120122012001} is an apocalyptic number.

It is an amenable number.

202120122012001 is a deficient number, since it is larger than the sum of its proper divisors (6520003935903).

202120122012001 is an equidigital number, since it uses as much as digits as its factorization.

202120122012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520003935902.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202120122012001 its reverse (100210221021202), we get a palindrome (302330343033203).

The spelling of 202120122012001 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, twelve thousand, one".