1220220202212 has 36 divisors (see below), whose sum is σ = 3364849649616. Its totient is φ = 369763697520.

The previous prime is 1220220202189. The next prime is 1220220202249. The reversal of 1220220202212 is 2122020220221.

1220220202212 is a `hidden beast` number, since 1 + 220 + 220 + 2 + 0 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540681678 + ... + 1540682469.

Almost surely, 2^{1220220202212} is an apocalyptic number.

1220220202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220220202212 is an abundant number, since it is smaller than the sum of its proper divisors (2144629447404).

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

1220220202212 is a wasteful number, since it uses less digits than its factorization.

1220220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081364168 (or 3081364163 counting only the distinct ones).

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

Adding to 1220220202212 its reverse (2122020220221), we get a palindrome (3342240422433).

The spelling of 1220220202212 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred two thousand, two hundred twelve".