121020120021202 has 8 divisors (see below), whose sum is σ = 187789841412300. Its totient is φ = 58423506217104.

The previous prime is 121020120021191. The next prime is 121020120021257. The reversal of 121020120021202 is 202120021020121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120138720129961 + 881399891241 = 10960781^2 + 938829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121020120021202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043276896677 + ... + 1043276896792.

Almost surely, 2^{121020120021202} is an apocalyptic number.

121020120021202 is a deficient number, since it is larger than the sum of its proper divisors (66769721391098).

121020120021202 is a wasteful number, since it uses less digits than its factorization.

121020120021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086553793500.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121020120021202 its reverse (202120021020121), we get a palindrome (323140141041323).

The spelling of 121020120021202 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty million, twenty-one thousand, two hundred two".