212252465146 has 8 divisors (see below), whose sum is σ = 318385531764. Its totient is φ = 106123954560.

The previous prime is 212252465123. The next prime is 212252465153. The reversal of 212252465146 is 641564252212.

It can be written as a sum of positive squares in 2 ways, for example, as 194887814521 + 17364650625 = 441461^2 + 131775^2 .

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

It is a super-2 number, since 2×212252465146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212252465099 and 212252465108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020055 + ... + 1210378.

Almost surely, 2^212252465146 is an apocalyptic number.

212252465146 is a deficient number, since it is larger than the sum of its proper divisors (106133066618).

212252465146 is a wasteful number, since it uses less digits than its factorization.

212252465146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278016.

The product of its digits is 230400, while the sum is 40.

The spelling of 212252465146 in words is "two hundred twelve billion, two hundred fifty-two million, four hundred sixty-five thousand, one hundred forty-six".