1201891685222 has 4 divisors (see below), whose sum is σ = 1802837527836. Its totient is φ = 600945842610.

The previous prime is 1201891685177. The next prime is 1201891685273. The reversal of 1201891685222 is 2225861981021.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300472921304 + ... + 300472921307.

It is an arithmetic number, because the mean of its divisors is an integer number (450709381959).

Almost surely, 2^{1201891685222} is an apocalyptic number.

1201891685222 is a deficient number, since it is larger than the sum of its proper divisors (600945842614).

1201891685222 is an equidigital number, since it uses as much as digits as its factorization.

1201891685222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600945842613.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 1201891685222 in words is "one trillion, two hundred one billion, eight hundred ninety-one million, six hundred eighty-five thousand, two hundred twenty-two".