202120333401 has 32 divisors (see below), whose sum is σ = 318813143040. Its totient is φ = 111444734016.

The previous prime is 202120333397. The next prime is 202120333411. The reversal of 202120333401 is 104333021202.

It is not a de Polignac number, because 202120333401 - 2² = 202120333397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (202120333411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 875400 + ... + 1081926.

It is an arithmetic number, because the mean of its divisors is an integer number (9962910720).

Almost surely, 2^202120333401 is an apocalyptic number.

202120333401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202120333401 is a deficient number, since it is larger than the sum of its proper divisors (116692809639).

202120333401 is a wasteful number, since it uses less digits than its factorization.

202120333401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208173.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 202120333401 its reverse (104333021202), we get a palindrome (306453354603).

The spelling of 202120333401 in words is "two hundred two billion, one hundred twenty million, three hundred thirty-three thousand, four hundred one".