1210021122202 has 4 divisors (see below), whose sum is σ = 1815031683306. Its totient is φ = 605010561100.

The previous prime is 1210021122181. The next prime is 1210021122229. The reversal of 1210021122202 is 2022211200121.

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., 1183049957761 + 26971164441 = 1087681^2 + 164229^2 .

It is a super-2 number, since 2×1210021122202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302505280549 + ... + 302505280552.

Almost surely, 2^{1210021122202} is an apocalyptic number.

1210021122202 is a deficient number, since it is larger than the sum of its proper divisors (605010561104).

1210021122202 is an equidigital number, since it uses as much as digits as its factorization.

1210021122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605010561103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210021122202 its reverse (2022211200121), we get a palindrome (3232232322323).

The spelling of 1210021122202 in words is "one trillion, two hundred ten billion, twenty-one million, one hundred twenty-two thousand, two hundred two".