202131211412 has 12 divisors (see below), whose sum is σ = 380939590836. Its totient is φ = 93291328320.

The previous prime is 202131211379. The next prime is 202131211433. The reversal of 202131211412 is 214112131202.

It can be written as a sum of positive squares in 2 ways, for example, as 18505249156 + 183625962256 = 136034^2 + 428516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943569289 + ... + 1943569392.

It is an arithmetic number, because the mean of its divisors is an integer number (31744965903).

Almost surely, 2^202131211412 is an apocalyptic number.

It is an amenable number.

202131211412 is a deficient number, since it is larger than the sum of its proper divisors (178808379424).

202131211412 is a wasteful number, since it uses less digits than its factorization.

202131211412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887138698 (or 3887138696 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 202131211412 its reverse (214112131202), we get a palindrome (416243342614).

The spelling of 202131211412 in words is "two hundred two billion, one hundred thirty-one million, two hundred eleven thousand, four hundred twelve".