212290155239 has 4 divisors (see below), whose sum is σ = 212981654424. Its totient is φ = 211598656056.

The previous prime is 212290155229. The next prime is 212290155257. The reversal of 212290155239 is 932551092212.

It is a happy number.

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 212290155239 - 2⁸ = 212290154983 is a prime.

It is a super-2 number, since 2×212290155239² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212290155196 and 212290155205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212290155229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345749132 + ... + 345749745.

It is an arithmetic number, because the mean of its divisors is an integer number (53245413606).

Almost surely, 2^212290155239 is an apocalyptic number.

212290155239 is a deficient number, since it is larger than the sum of its proper divisors (691499185).

212290155239 is an equidigital number, since it uses as much as digits as its factorization.

212290155239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691499184.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 212290155239 in words is "two hundred twelve billion, two hundred ninety million, one hundred fifty-five thousand, two hundred thirty-nine".