1220220221202 has 32 divisors (see below), whose sum is σ = 2769294124800. Its totient is φ = 398086028784.

The previous prime is 1220220221183. The next prime is 1220220221239. The reversal of 1220220221202 is 2021220220221.

1220220221202 is a `hidden beast` number, since 1 + 2 + 20 + 220 + 221 + 202 = 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 15 ways as a sum of consecutive naturals, for example, 240387577 + ... + 240392652.

It is an arithmetic number, because the mean of its divisors is an integer number (86540441400).

Almost surely, 2^{1220220221202} is an apocalyptic number.

1220220221202 is an abundant number, since it is smaller than the sum of its proper divisors (1549073903598).

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

1220220221202 is a wasteful number, since it uses less digits than its factorization.

1220220221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480780287 (or 480780281 counting only the distinct ones).

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

Adding to 1220220221202 its reverse (2021220220221), we get a palindrome (3241440441423).

It can be divided in two parts, 1220220221 and 202, that multiplied together give a palindrome (246484484642).

The spelling of 1220220221202 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred two".