1222050907391 has 4 divisors (see below), whose sum is σ = 1223233919952. Its totient is φ = 1220867894832.

The previous prime is 1222050907387. The next prime is 1222050907393. The reversal of 1222050907391 is 1937090502221.

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 1222050907391 - 2² = 1222050907387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222050907393) 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, 591504731 + ... + 591506796.

It is an arithmetic number, because the mean of its divisors is an integer number (305808479988).

Almost surely, 2^{1222050907391} is an apocalyptic number.

1222050907391 is a deficient number, since it is larger than the sum of its proper divisors (1183012561).

1222050907391 is a wasteful number, since it uses less digits than its factorization.

1222050907391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183012560.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 1222050907391 in words is "one trillion, two hundred twenty-two billion, fifty million, nine hundred seven thousand, three hundred ninety-one".