120202110212021 has 6 divisors (see below), whose sum is σ = 127688746834530. Its totient is φ = 113131397846336.

The previous prime is 120202110212003. The next prime is 120202110212029. The reversal of 120202110212021 is 120212011202021.

It can be written as a sum of positive squares in 3 ways, for example, as 77307862815121 + 42894247396900 = 8792489^2 + 6549370^2 .

It is not a de Polignac number, because 120202110212021 - 2²⁶ = 120202043103157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202110212029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207962128106 + ... + 207962128683.

It is an arithmetic number, because the mean of its divisors is an integer number (21281457805755).

Almost surely, 2^{120202110212021} is an apocalyptic number.

It is an amenable number.

120202110212021 is a deficient number, since it is larger than the sum of its proper divisors (7486636622509).

120202110212021 is an equidigital number, since it uses as much as digits as its factorization.

120202110212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415924256823 (or 415924256806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120202110212021 its reverse (120212011202021), we get a palindrome (240414121414042).

The spelling of 120202110212021 in words is "one hundred twenty trillion, two hundred two billion, one hundred ten million, two hundred twelve thousand, twenty-one".