3122011219987 has 4 divisors (see below), whose sum is σ = 3405830421816. Its totient is φ = 2838192018160.

The previous prime is 3122011219979. The next prime is 3122011219997. The reversal of 3122011219987 is 7899121102213.

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

It is a cyclic number.

It is not a de Polignac number, because 3122011219987 - 2³ = 3122011219979 is a prime.

It is a super-2 number, since 2×3122011219987² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3122011219937) 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, 141909600898 + ... + 141909600919.

It is an arithmetic number, because the mean of its divisors is an integer number (851457605454).

Almost surely, 2^{3122011219987} is an apocalyptic number.

3122011219987 is a deficient number, since it is larger than the sum of its proper divisors (283819201829).

3122011219987 is a wasteful number, since it uses less digits than its factorization.

3122011219987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283819201828.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 3122011219987 in words is "three trillion, one hundred twenty-two billion, eleven million, two hundred nineteen thousand, nine hundred eighty-seven".