191201020222 has 64 divisors (see below), whose sum is σ = 302462392320. Its totient is φ = 90568044000.

The previous prime is 191201020187. The next prime is 191201020223. The reversal of 191201020222 is 222020102191.

It is a junction number, because it is equal to n+sod(n) for n = 191201020193 and 191201020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191201020223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124885597 + ... + 124887127.

It is an arithmetic number, because the mean of its divisors is an integer number (4725974880).

Almost surely, 2^191201020222 is an apocalyptic number.

191201020222 is a deficient number, since it is larger than the sum of its proper divisors (111261372098).

191201020222 is a wasteful number, since it uses less digits than its factorization.

191201020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 191201020222 in words is "one hundred ninety-one billion, two hundred one million, twenty thousand, two hundred twenty-two".