120210202021 has 24 divisors (see below), whose sum is σ = 152407440864. Its totient is φ = 93965407200.

The previous prime is 120210202019. The next prime is 120210202037. The reversal of 120210202021 is 120202012021.

It is a happy number.

It is not a de Polignac number, because 120210202021 - 2¹ = 120210202019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 120210201992 and 120210202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210202051) 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, 1083955 + ... + 1189696.

It is an arithmetic number, because the mean of its divisors is an integer number (6350310036).

Almost surely, 2^120210202021 is an apocalyptic number.

It is an amenable number.

120210202021 is a deficient number, since it is larger than the sum of its proper divisors (32197238843).

120210202021 is a wasteful number, since it uses less digits than its factorization.

120210202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273761 (or 2273754 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120210202021 its reverse (120202012021), we get a palindrome (240412214042).

The spelling of 120210202021 in words is "one hundred twenty billion, two hundred ten million, two hundred two thousand, twenty-one".