1021112001202 has 4 divisors (see below), whose sum is σ = 1531668001806. Its totient is φ = 510556000600.

The previous prime is 1021112001193. The next prime is 1021112001211. The reversal of 1021112001202 is 2021002111201.

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

It is an interprime number because it is at equal distance from previous prime (1021112001193) and next prime (1021112001211).

It can be written as a sum of positive squares in only one way, i.e., 997303819801 + 23808181401 = 998651^2 + 154299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255278000299 + ... + 255278000302.

Almost surely, 2^{1021112001202} is an apocalyptic number.

1021112001202 is a deficient number, since it is larger than the sum of its proper divisors (510556000604).

1021112001202 is an equidigital number, since it uses as much as digits as its factorization.

1021112001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510556000603.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021112001202 its reverse (2021002111201), we get a palindrome (3042114112403).

The spelling of 1021112001202 in words is "one trillion, twenty-one billion, one hundred twelve million, one thousand, two hundred two".