202100021200001 has 16 divisors (see below), whose sum is σ = 205313079974400. Its totient is φ = 198897167078400.

The previous prime is 202100021199991. The next prime is 202100021200003. The reversal of 202100021200001 is 100002120001202.

It is a happy number.

202100021200001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202100021200001 - 2¹⁴ = 202100021183617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202100021200003) 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, 1829251880 + ... + 1829362358.

It is an arithmetic number, because the mean of its divisors is an integer number (12832067498400).

Almost surely, 2^{202100021200001} is an apocalyptic number.

It is an amenable number.

202100021200001 is a deficient number, since it is larger than the sum of its proper divisors (3213058774399).

202100021200001 is a wasteful number, since it uses less digits than its factorization.

202100021200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156400.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202100021200001 its reverse (100002120001202), we get a palindrome (302102141201203).

The spelling of 202100021200001 in words is "two hundred two trillion, one hundred billion, twenty-one million, two hundred thousand, one".