21212132113202 has 8 divisors (see below), whose sum is σ = 33492840178800. Its totient is φ = 10047852053604.

The previous prime is 21212132113169. The next prime is 21212132113217. The reversal of 21212132113202 is 20231123121212.

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

It is a super-2 number, since 2×21212132113202² (a number of 27 digits) contains 22 as substring.

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, 279107001452 + ... + 279107001527.

It is an arithmetic number, because the mean of its divisors is an integer number (4186605022350).

Almost surely, 2^{21212132113202} is an apocalyptic number.

21212132113202 is a deficient number, since it is larger than the sum of its proper divisors (12280708065598).

21212132113202 is a wasteful number, since it uses less digits than its factorization.

21212132113202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558214003000.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21212132113202 its reverse (20231123121212), we get a palindrome (41443255234414).

The spelling of 21212132113202 in words is "twenty-one trillion, two hundred twelve billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred two".