202122011983 has 4 divisors (see below), whose sum is σ = 203332323600. Its totient is φ = 200911700368.

The previous prime is 202122011981. The next prime is 202122012013. The reversal of 202122011983 is 389110221202.

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

It is a cyclic number.

It is not a de Polignac number, because 202122011983 - 2¹ = 202122011981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122011981) 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, 605155558 + ... + 605155891.

It is an arithmetic number, because the mean of its divisors is an integer number (50833080900).

Almost surely, 2^202122011983 is an apocalyptic number.

202122011983 is a deficient number, since it is larger than the sum of its proper divisors (1210311617).

202122011983 is a wasteful number, since it uses less digits than its factorization.

202122011983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210311616.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 202122011983 in words is "two hundred two billion, one hundred twenty-two million, eleven thousand, nine hundred eighty-three".