2220202221012 has 18 divisors (see below), whose sum is σ = 5612177836538. Its totient is φ = 740067406992.

The previous prime is 2220202220939. The next prime is 2220202221023. The reversal of 2220202221012 is 2101222020222.

It can be written as a sum of positive squares in only one way, i.e., 1465034268996 + 755167952016 = 1210386^2 + 869004^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30836141923 + ... + 30836141994.

Almost surely, 2^{2220202221012} is an apocalyptic number.

It is an amenable number.

2220202221012 is an abundant number, since it is smaller than the sum of its proper divisors (3391975615526).

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

2220202221012 is a wasteful number, since it uses less digits than its factorization.

2220202221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61672283927 (or 61672283922 counting only the distinct ones).

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

Adding to 2220202221012 its reverse (2101222020222), we get a palindrome (4321424241234).

The spelling of 2220202221012 in words is "two trillion, two hundred twenty billion, two hundred two million, two hundred twenty-one thousand, twelve".