1122200202221 has 16 divisors (see below), whose sum is σ = 1301855016960. Its totient is φ = 947407115760.

The previous prime is 1122200202181. The next prime is 1122200202283. The reversal of 1122200202221 is 1222020022211.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1122200202221 is a prime.

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 1122200202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122200208221) 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, 601481 + ... + 1614366.

It is an arithmetic number, because the mean of its divisors is an integer number (81365938560).

Almost surely, 2^{1122200202221} is an apocalyptic number.

It is an amenable number.

1122200202221 is a deficient number, since it is larger than the sum of its proper divisors (179654814739).

1122200202221 is a wasteful number, since it uses less digits than its factorization.

1122200202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216944.

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

Adding to 1122200202221 its reverse (1222020022211), we get a palindrome (2344220224432).

The spelling of 1122200202221 in words is "one trillion, one hundred twenty-two billion, two hundred million, two hundred two thousand, two hundred twenty-one".