21132102202 has 8 divisors (see below), whose sum is σ = 31978668276. Its totient is φ = 10472546112.

The previous prime is 21132102197. The next prime is 21132102217. The reversal of 21132102202 is 20220123112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19487880801 + 1644221401 = 139599^2 + 40549^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46752213 + ... + 46752664.

Almost surely, 2^21132102202 is an apocalyptic number.

21132102202 is a deficient number, since it is larger than the sum of its proper divisors (10846566074).

21132102202 is a wasteful number, since it uses less digits than its factorization.

21132102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93504992.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21132102202 its reverse (20220123112), we get a palindrome (41352225314).

The spelling of 21132102202 in words is "twenty-one billion, one hundred thirty-two million, one hundred two thousand, two hundred two".