190201021121 has 8 divisors (see below), whose sum is σ = 200385268320. Its totient is φ = 180034140672.

The previous prime is 190201021111. The next prime is 190201021133. The reversal of 190201021121 is 121120102091.

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

It is a de Polignac number, because none of the positive numbers 2^k-190201021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190201021093 and 190201021102.

It is not an unprimeable number, because it can be changed into a prime (190201021111) 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, 4319195 + ... + 4363008.

It is an arithmetic number, because the mean of its divisors is an integer number (25048158540).

Almost surely, 2^190201021121 is an apocalyptic number.

It is an amenable number.

190201021121 is a deficient number, since it is larger than the sum of its proper divisors (10184247199).

190201021121 is a wasteful number, since it uses less digits than its factorization.

190201021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683375.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 190201021121 in words is "one hundred ninety billion, two hundred one million, twenty-one thousand, one hundred twenty-one".