12202012202121 has 12 divisors (see below), whose sum is σ = 20143004270272. Its totient is φ = 6972578401176.

The previous prime is 12202012202117. The next prime is 12202012202131. The reversal of 12202012202121 is 12120221020221.

It is a happy number.

12202012202121 is a `hidden beast` number, since 1 + 220 + 201 + 220 + 2 + 1 + 21 = 666.

It is not a de Polignac number, because 12202012202121 - 2² = 12202012202117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202012202094 and 12202012202103.

It is not an unprimeable number, because it can be changed into a prime (12202012202131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96841366621 + ... + 96841366746.

Almost surely, 2^{12202012202121} is an apocalyptic number.

It is an amenable number.

12202012202121 is a deficient number, since it is larger than the sum of its proper divisors (7940992068151).

12202012202121 is a wasteful number, since it uses less digits than its factorization.

12202012202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193682733380 (or 193682733377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12202012202121 its reverse (12120221020221), we get a palindrome (24322233222342).

The spelling of 12202012202121 in words is "twelve trillion, two hundred two billion, twelve million, two hundred two thousand, one hundred twenty-one".