202120612072 has 32 divisors (see below), whose sum is σ = 380708380800. Its totient is φ = 100599408000.

The previous prime is 202120612061. The next prime is 202120612117. The reversal of 202120612072 is 270216021202.

202120612072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515697 + ... + 1643647.

It is an arithmetic number, because the mean of its divisors is an integer number (11897136900).

Almost surely, 2^202120612072 is an apocalyptic number.

It is an amenable number.

202120612072 is a deficient number, since it is larger than the sum of its proper divisors (178587768728).

202120612072 is a wasteful number, since it uses less digits than its factorization.

202120612072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128857 (or 128853 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 202120612072 its reverse (270216021202), we get a palindrome (472336633274).

The spelling of 202120612072 in words is "two hundred two billion, one hundred twenty million, six hundred twelve thousand, seventy-two".