1021112221202 has 8 divisors (see below), whose sum is σ = 1531676735436. Its totient is φ = 510553309392.

The previous prime is 1021112221189. The next prime is 1021112221223. The reversal of 1021112221202 is 2021222111201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020869765161 + 242456041 = 1010381^2 + 15571^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910673 + ... + 1694564.

Almost surely, 2^{1021112221202} is an apocalyptic number.

1021112221202 is a deficient number, since it is larger than the sum of its proper divisors (510564514234).

1021112221202 is a wasteful number, since it uses less digits than its factorization.

1021112221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801212.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1021112221202 its reverse (2021222111201), we get a palindrome (3042334332403).

The spelling of 1021112221202 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred two".