1012202202221 has 8 divisors (see below), whose sum is σ = 1224849723840. Its totient is φ = 816566482368.

The previous prime is 1012202202199. The next prime is 1012202202229. The reversal of 1012202202221 is 1222022022101.

It is a happy number.

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

It is not a de Polignac number, because 1012202202221 - 2⁶ = 1012202202157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012202202229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252950311 + ... + 4252950548.

It is an arithmetic number, because the mean of its divisors is an integer number (153106215480).

Almost surely, 2^{1012202202221} is an apocalyptic number.

It is an amenable number.

1012202202221 is a deficient number, since it is larger than the sum of its proper divisors (212647521619).

1012202202221 is an equidigital number, since it uses as much as digits as its factorization.

1012202202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8505900883.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1012202202221 its reverse (1222022022101), we get a palindrome (2234224224322).

The spelling of 1012202202221 in words is "one trillion, twelve billion, two hundred two million, two hundred two thousand, two hundred twenty-one".