1021102202 has 4 divisors (see below), whose sum is σ = 1531653306. Its totient is φ = 510551100.

The previous prime is 1021102193. The next prime is 1021102259. The reversal of 1021102202 is 2022011201.

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., 907274641 + 113827561 = 30121^2 + 10669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255275549 + ... + 255275552.

Almost surely, 2^1021102202 is an apocalyptic number.

1021102202 is a deficient number, since it is larger than the sum of its proper divisors (510551104).

1021102202 is an equidigital number, since it uses as much as digits as its factorization.

1021102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510551103.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1021102202 is about 31954.6898279423. The cubic root of 1021102202 is about 1006.9851612479.

Adding to 1021102202 its reverse (2022011201), we get a palindrome (3043113403).

The spelling of 1021102202 in words is "one billion, twenty-one million, one hundred two thousand, two hundred two".