212253506499 has 16 divisors (see below), whose sum is σ = 294249589920. Its totient is φ = 135929418240.

The previous prime is 212253506447. The next prime is 212253506501. The reversal of 212253506499 is 994605352212.

It is not a de Polignac number, because 212253506499 - 2⁸ = 212253506243 is a prime.

It is a super-2 number, since 2×212253506499² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212253506299) 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, 6174982 + ... + 6209259.

It is an arithmetic number, because the mean of its divisors is an integer number (18390599370).

Almost surely, 2^212253506499 is an apocalyptic number.

212253506499 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

212253506499 is a deficient number, since it is larger than the sum of its proper divisors (81996083421).

212253506499 is a wasteful number, since it uses less digits than its factorization.

212253506499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384470.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 212253506499 in words is "two hundred twelve billion, two hundred fifty-three million, five hundred six thousand, four hundred ninety-nine".