511200112122 has 32 divisors (see below), whose sum is σ = 1298286000000. Its totient is φ = 146057174784.

The previous prime is 511200112069. The next prime is 511200112133. The reversal of 511200112122 is 221211002115.

511200112122 is a `hidden beast` number, since 511 + 20 + 0 + 1 + 12 + 122 = 666.

It is a super-2 number, since 2×511200112122² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 511200112095 and 511200112104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676190247 + ... + 676191002.

It is an arithmetic number, because the mean of its divisors is an integer number (40571437500).

Almost surely, 2^511200112122 is an apocalyptic number.

511200112122 is an abundant number, since it is smaller than the sum of its proper divisors (787085887878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511200112122 is a wasteful number, since it uses less digits than its factorization.

511200112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352381267 (or 1352381261 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 511200112122 its reverse (221211002115), we get a palindrome (732411114237).

The spelling of 511200112122 in words is "five hundred eleven billion, two hundred million, one hundred twelve thousand, one hundred twenty-two".