1220000000202 has 24 divisors (see below), whose sum is σ = 2643445702560. Its totient is φ = 406649379240.

The previous prime is 1220000000201. The next prime is 1220000000203. The reversal of 1220000000202 is 2020000000221.

It is an interprime number because it is at equal distance from previous prime (1220000000201) and next prime (1220000000203).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1220000000201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1001824 + ... + 1855707.

It is an arithmetic number, because the mean of its divisors is an integer number (110143570940).

Almost surely, 2^{1220000000202} is an apocalyptic number.

1220000000202 is an abundant number, since it is smaller than the sum of its proper divisors (1423445702358).

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

1220000000202 is a wasteful number, since it uses less digits than its factorization.

1220000000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881258 (or 2881255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 1220000000202 its reverse (2020000000221), we get a palindrome (3240000000423).

The spelling of 1220000000202 in words is "one trillion, two hundred twenty billion, two hundred two", and thus it is an aban number.