1012022200221 has 16 divisors (see below), whose sum is σ = 1456583679360. Its totient is φ = 623094127040.

The previous prime is 1012022200159. The next prime is 1012022200307. The reversal of 1012022200221 is 1220022202101.

It is a cyclic number.

It is not a de Polignac number, because 1012022200221 - 2¹⁹ = 1012021675933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012022200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012022200621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252877110 + ... + 252881111.

It is an arithmetic number, because the mean of its divisors is an integer number (91036479960).

Almost surely, 2^{1012022200221} is an apocalyptic number.

It is an amenable number.

1012022200221 is a deficient number, since it is larger than the sum of its proper divisors (444561479139).

1012022200221 is a wasteful number, since it uses less digits than its factorization.

1012022200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505758276.

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

Adding to 1012022200221 its reverse (1220022202101), we get a palindrome (2232044402322).

The spelling of 1012022200221 in words is "one trillion, twelve billion, twenty-two million, two hundred thousand, two hundred twenty-one".