1221010102202 has 32 divisors (see below), whose sum is σ = 2032077196800. Its totient is φ = 545545111600.

The previous prime is 1221010102201. The next prime is 1221010102217. The reversal of 1221010102202 is 2022010101221.

It is not an unprimeable number, because it can be changed into a prime (1221010102201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15457427 + ... + 15536217.

It is an arithmetic number, because the mean of its divisors is an integer number (63502412400).

Almost surely, 2^{1221010102202} is an apocalyptic number.

1221010102202 is a deficient number, since it is larger than the sum of its proper divisors (811067094598).

1221010102202 is a wasteful number, since it uses less digits than its factorization.

1221010102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90802.

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

Adding to 1221010102202 its reverse (2022010101221), we get a palindrome (3243020203423).

The spelling of 1221010102202 in words is "one trillion, two hundred twenty-one billion, ten million, one hundred two thousand, two hundred two".