120202121331021 has 16 divisors (see below), whose sum is σ = 160319795336064. Its totient is φ = 80109598593024.

The previous prime is 120202121330903. The next prime is 120202121331023. The reversal of 120202121331021 is 120133121202021.

It is a de Polignac number, because none of the positive numbers 2^k-120202121331021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202121331023) 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, 510062800 + ... + 510298406.

It is an arithmetic number, because the mean of its divisors is an integer number (10019987208504).

Almost surely, 2^{120202121331021} is an apocalyptic number.

It is an amenable number.

120202121331021 is a deficient number, since it is larger than the sum of its proper divisors (40117674005043).

120202121331021 is a wasteful number, since it uses less digits than its factorization.

120202121331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288260.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 120202121331021 its reverse (120133121202021), we get a palindrome (240335242533042).

The spelling of 120202121331021 in words is "one hundred twenty trillion, two hundred two billion, one hundred twenty-one million, three hundred thirty-one thousand, twenty-one".