1012202002221 has 32 divisors (see below), whose sum is σ = 1426703646720. Its totient is φ = 637324632000.

The previous prime is 1012202002183. The next prime is 1012202002237. The reversal of 1012202002221 is 1222002022101.

It is not a de Polignac number, because 1012202002221 - 2¹³ = 1012201994029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012202002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012202042221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4811796 + ... + 5017746.

It is an arithmetic number, because the mean of its divisors is an integer number (44584488960).

Almost surely, 2^{1012202002221} is an apocalyptic number.

It is an amenable number.

1012202002221 is a deficient number, since it is larger than the sum of its proper divisors (414501644499).

1012202002221 is a wasteful number, since it uses less digits than its factorization.

1012202002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207257.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1012202002221 its reverse (1222002022101), we get a palindrome (2234204024322).

The spelling of 1012202002221 in words is "one trillion, twelve billion, two hundred two million, two thousand, two hundred twenty-one".