120211002202021 has 4 divisors (see below), whose sum is σ = 120212076652812. Its totient is φ = 120209927751232.

The previous prime is 120211002201991. The next prime is 120211002202069. The reversal of 120211002202021 is 120202200112021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93901642761796 + 26309359440225 = 9690286^2 + 5129265^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211002202021 - 2²³ = 120210993813413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120211002201986 and 120211002202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211002202121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537057556 + ... + 537281341.

It is an arithmetic number, because the mean of its divisors is an integer number (30053019163203).

Almost surely, 2^{120211002202021} is an apocalyptic number.

It is an amenable number.

120211002202021 is a deficient number, since it is larger than the sum of its proper divisors (1074450791).

120211002202021 is a wasteful number, since it uses less digits than its factorization.

120211002202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074450790.

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

Adding to 120211002202021 its reverse (120202200112021), we get a palindrome (240413202314042).

The spelling of 120211002202021 in words is "one hundred twenty trillion, two hundred eleven billion, two million, two hundred two thousand, twenty-one".