1021211202202 has 8 divisors (see below), whose sum is σ = 1546983306612. Its totient is φ = 505550100000.

The previous prime is 1021211202197. The next prime is 1021211202203. The reversal of 1021211202202 is 2022021121201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1012919460721 + 8291741481 = 1006439^2 + 91059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1021211202203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527750299 + ... + 2527750702.

Almost surely, 2^{1021211202202} is an apocalyptic number.

1021211202202 is a deficient number, since it is larger than the sum of its proper divisors (525772104410).

1021211202202 is a wasteful number, since it uses less digits than its factorization.

1021211202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055501104.

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

Adding to 1021211202202 its reverse (2022021121201), we get a palindrome (3043232323403).

The spelling of 1021211202202 in words is "one trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, two hundred two".