1212011222202 has 64 divisors (see below), whose sum is σ = 3009872718720. Its totient is φ = 358318166400.

The previous prime is 1212011222189. The next prime is 1212011222239. The reversal of 1212011222202 is 2022221102121.

It is a happy number.

1212011222202 is a `hidden beast` number, since 121 + 201 + 122 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24858853 + ... + 24907560.

It is an arithmetic number, because the mean of its divisors is an integer number (47029261230).

Almost surely, 2^{1212011222202} is an apocalyptic number.

1212011222202 is an abundant number, since it is smaller than the sum of its proper divisors (1797861496518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212011222202 is a wasteful number, since it uses less digits than its factorization.

1212011222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49766476 (or 49766470 counting only the distinct ones).

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

Adding to 1212011222202 its reverse (2022221102121), we get a palindrome (3234232324323).

The spelling of 1212011222202 in words is "one trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred two".