121222211193 has 12 divisors (see below), whose sum is σ = 175328849748. Its totient is φ = 80708607360.

The previous prime is 121222211167. The next prime is 121222211281. The reversal of 121222211193 is 391112222121.

It can be written as a sum of positive squares in 2 ways, for example, as 1220244624 + 120001966569 = 34932^2 + 346413^2 .

It is not a de Polignac number, because 121222211193 - 2⁶ = 121222211129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222211293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8842780 + ... + 8856477.

It is an arithmetic number, because the mean of its divisors is an integer number (14610737479).

Almost surely, 2^121222211193 is an apocalyptic number.

It is an amenable number.

121222211193 is a deficient number, since it is larger than the sum of its proper divisors (54106638555).

121222211193 is a wasteful number, since it uses less digits than its factorization.

121222211193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700024 (or 17700021 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The spelling of 121222211193 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred ninety-three".