1102021020202 has 4 divisors (see below), whose sum is σ = 1653031530306. Its totient is φ = 551010510100.

The previous prime is 1102021020169. The next prime is 1102021020211. The reversal of 1102021020202 is 2020201202011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1099517919241 + 2503100961 = 1048579^2 + 50031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275505255049 + ... + 275505255052.

Almost surely, 2^{1102021020202} is an apocalyptic number.

1102021020202 is a deficient number, since it is larger than the sum of its proper divisors (551010510104).

1102021020202 is an equidigital number, since it uses as much as digits as its factorization.

1102021020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551010510103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1102021020202 its reverse (2020201202011), we get a palindrome (3122222222213).

The spelling of 1102021020202 in words is "one trillion, one hundred two billion, twenty-one million, twenty thousand, two hundred two".