511212099 has 16 divisors (see below), whose sum is σ = 712069632. Its totient is φ = 325615488.

The previous prime is 511212061. The next prime is 511212109. The reversal of 511212099 is 990212115.

It is a Cunningham number, because it is equal to 22610²-1.

It is not a de Polignac number, because 511212099 - 2¹⁷ = 511081027 is a prime.

It is a super-2 number, since 2×511212099² = 522675620327971602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511212199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64059 + ... + 71595.

It is an arithmetic number, because the mean of its divisors is an integer number (44504352).

Almost surely, 2^511212099 is an apocalyptic number.

511212099 is a deficient number, since it is larger than the sum of its proper divisors (200857533).

511212099 is a wasteful number, since it uses less digits than its factorization.

511212099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 511212099 is about 22609.9999778859. Note that the first 4 decimals coincide. The cubic root of 511212099 is about 799.5894242163.

The spelling of 511212099 in words is "five hundred eleven million, two hundred twelve thousand, ninety-nine".