1201200220191 has 8 divisors (see below), whose sum is σ = 1602596939904. Its totient is φ = 800301823640.

The previous prime is 1201200220159. The next prime is 1201200220193. The reversal of 1201200220191 is 1910220021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201200220191 - 2⁵ = 1201200220159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201200220193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124575165 + ... + 124584806.

It is an arithmetic number, because the mean of its divisors is an integer number (200324617488).

Almost surely, 2^{1201200220191} is an apocalyptic number.

1201200220191 is a deficient number, since it is larger than the sum of its proper divisors (401396719713).

1201200220191 is a wasteful number, since it uses less digits than its factorization.

1201200220191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249161581.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1201200220191 in words is "one trillion, two hundred one billion, two hundred million, two hundred twenty thousand, one hundred ninety-one".