212051233465 has 8 divisors (see below), whose sum is σ = 267854189760. Its totient is φ = 160712513712.

The previous prime is 212051233411. The next prime is 212051233489. The reversal of 212051233465 is 564332150212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212051233465 - 2³⁵ = 177691495097 is a prime.

It is a super-2 number, since 2×212051233465² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212051233465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116059029 + ... + 1116059218.

It is an arithmetic number, because the mean of its divisors is an integer number (33481773720).

Almost surely, 2^212051233465 is an apocalyptic number.

It is an amenable number.

212051233465 is a deficient number, since it is larger than the sum of its proper divisors (55802956295).

212051233465 is a wasteful number, since it uses less digits than its factorization.

212051233465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232118271.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 212051233465 its reverse (564332150212), we get a palindrome (776383383677).

The spelling of 212051233465 in words is "two hundred twelve billion, fifty-one million, two hundred thirty-three thousand, four hundred sixty-five".