1212220022202 has 96 divisors (see below), whose sum is σ = 3094205018112. Its totient is φ = 335811251232.

The previous prime is 1212220022191. The next prime is 1212220022263. The reversal of 1212220022202 is 2022200222121.

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 47 ways as a sum of consecutive naturals, for example, 322878 + ... + 1590185.

It is an arithmetic number, because the mean of its divisors is an integer number (32231302272).

Almost surely, 2^{1212220022202} is an apocalyptic number.

1212220022202 is an abundant number, since it is smaller than the sum of its proper divisors (1881984995910).

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

1212220022202 is a wasteful number, since it uses less digits than its factorization.

1212220022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913232 (or 1913229 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1212220022202 its reverse (2022200222121), we get a palindrome (3234420244323).

The spelling of 1212220022202 in words is "one trillion, two hundred twelve billion, two hundred twenty million, twenty-two thousand, two hundred two".