202031213122 has 8 divisors (see below), whose sum is σ = 303064287372. Its totient is φ = 101009784000.

The previous prime is 202031213099. The next prime is 202031213123. The reversal of 202031213122 is 221312130202.

It can be written as a sum of positive squares in 2 ways, for example, as 186823637361 + 15207575761 = 432231^2 + 123319^2 .

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

It is a super-2 number, since 2×202031213122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202031213122.

It is not an unprimeable number, because it can be changed into a prime (202031213123) 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, 2867779 + ... + 2937382.

Almost surely, 2^202031213122 is an apocalyptic number.

202031213122 is a deficient number, since it is larger than the sum of its proper divisors (101033074250).

202031213122 is a wasteful number, since it uses less digits than its factorization.

202031213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822564.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202031213122 its reverse (221312130202), we get a palindrome (423343343324).

The spelling of 202031213122 in words is "two hundred two billion, thirty-one million, two hundred thirteen thousand, one hundred twenty-two".