10202120020001 has 16 divisors (see below), whose sum is σ = 12989436633600. Its totient is φ = 7793661976128.

The previous prime is 10202120019983. The next prime is 10202120020039. The reversal of 10202120020001 is 10002002120201.

It is a happy number.

It is not a de Polignac number, because 10202120020001 - 2²⁶ = 10202052911137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202120020091) 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, 1932949241 + ... + 1932954518.

It is an arithmetic number, because the mean of its divisors is an integer number (811839789600).

Almost surely, 2^{10202120020001} is an apocalyptic number.

It is an amenable number.

10202120020001 is a deficient number, since it is larger than the sum of its proper divisors (2787316613599).

10202120020001 is a wasteful number, since it uses less digits than its factorization.

10202120020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865903808.

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

Adding to 10202120020001 its reverse (10002002120201), we get a palindrome (20204122140202).

The spelling of 10202120020001 in words is "ten trillion, two hundred two billion, one hundred twenty million, twenty thousand, one".