1220120020202 has 16 divisors (see below), whose sum is σ = 1833223282632. Its totient is φ = 609046218240.

The previous prime is 1220120020169. The next prime is 1220120020219. The reversal of 1220120020202 is 2020200210221.

It can be written as a sum of positive squares in 4 ways, for example, as 1123093377121 + 97026643081 = 1059761^2 + 311491^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3787202 + ... + 4096722.

Almost surely, 2^{1220120020202} is an apocalyptic number.

1220120020202 is a deficient number, since it is larger than the sum of its proper divisors (613103262430).

1220120020202 is a wasteful number, since it uses less digits than its factorization.

1220120020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312793.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1220120020202 its reverse (2020200210221), we get a palindrome (3240320230423).

The spelling of 1220120020202 in words is "one trillion, two hundred twenty billion, one hundred twenty million, twenty thousand, two hundred two".