2002231100121 has 24 divisors (see below), whose sum is σ = 3127248969792. Its totient is φ = 1116226377600.

The previous prime is 2002231100113. The next prime is 2002231100147. The reversal of 2002231100121 is 1210011322002.

It is not a de Polignac number, because 2002231100121 - 2³ = 2002231100113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002231100121.

It is not an unprimeable number, because it can be changed into a prime (2002231101121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28324110 + ... + 28394711.

It is an arithmetic number, because the mean of its divisors is an integer number (130302040408).

Almost surely, 2^{2002231100121} is an apocalyptic number.

2002231100121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2002231100121 is a deficient number, since it is larger than the sum of its proper divisors (1125017869671).

2002231100121 is an equidigital number, since it uses as much as digits as its factorization.

2002231100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56718913 (or 56718872 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2002231100121 its reverse (1210011322002), we get a palindrome (3212242422123).

The spelling of 2002231100121 in words is "two trillion, two billion, two hundred thirty-one million, one hundred thousand, one hundred twenty-one".