12101221202 has 24 divisors (see below), whose sum is σ = 21309134220. Its totient is φ = 5138652960.

The previous prime is 12101221199. The next prime is 12101221211. The reversal of 12101221202 is 20212210121.

It can be written as a sum of positive squares in 2 ways, for example, as 11950643761 + 150577441 = 109319^2 + 12271^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555749 + ... + 577112.

Almost surely, 2^12101221202 is an apocalyptic number.

12101221202 is a deficient number, since it is larger than the sum of its proper divisors (9207913018).

12101221202 is a wasteful number, since it uses less digits than its factorization.

12101221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132986 (or 1132979 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12101221202 its reverse (20212210121), we get a palindrome (32313431323).

The spelling of 12101221202 in words is "twelve billion, one hundred one million, two hundred twenty-one thousand, two hundred two".