122200220021111 has 4 divisors (see below), whose sum is σ = 122203741371552. Its totient is φ = 122196698670672.

The previous prime is 122200220020981. The next prime is 122200220021123. The reversal of 122200220021111 is 111120022002221.

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

It is a cyclic number.

It is not a de Polignac number, because 122200220021111 - 2²² = 122200215826807 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 122200220021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200220021611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760623166 + ... + 1760692571.

It is an arithmetic number, because the mean of its divisors is an integer number (30550935342888).

Almost surely, 2^{122200220021111} is an apocalyptic number.

122200220021111 is a deficient number, since it is larger than the sum of its proper divisors (3521350441).

122200220021111 is an equidigital number, since it uses as much as digits as its factorization.

122200220021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521350440.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122200220021111 its reverse (111120022002221), we get a palindrome (233320242023332).

The spelling of 122200220021111 in words is "one hundred twenty-two trillion, two hundred billion, two hundred twenty million, twenty-one thousand, one hundred eleven".