189020310212 has 12 divisors (see below), whose sum is σ = 332517405696. Its totient is φ = 94015337160.

The previous prime is 189020310187. The next prime is 189020310217. The reversal of 189020310212 is 212013020981.

It is a super-2 number, since 2×189020310212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189020310217) 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, 123703628 + ... + 123705155.

It is an arithmetic number, because the mean of its divisors is an integer number (27709783808).

Almost surely, 2^189020310212 is an apocalyptic number.

It is an amenable number.

189020310212 is a deficient number, since it is larger than the sum of its proper divisors (143497095484).

189020310212 is a wasteful number, since it uses less digits than its factorization.

189020310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247408978 (or 247408976 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 189020310212 in words is "one hundred eighty-nine billion, twenty million, three hundred ten thousand, two hundred twelve".