212512248 has 112 divisors (see below), whose sum is σ = 643602120. Its totient is φ = 65365056.

The previous prime is 212512247. The next prime is 212512273. The reversal of 212512248 is 842215212.

It is a super-2 number, since 2×212512248² = 90322911100027008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212512247) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 74415 + ... + 77217.

Almost surely, 2^212512248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212512248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321801060).

212512248 is an abundant number, since it is smaller than the sum of its proper divisors (431089872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212512248 is a wasteful number, since it uses less digits than its factorization.

212512248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840 (or 2821 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 212512248 is about 14577.7998339942. The cubic root of 212512248 is about 596.7530606706.

The spelling of 212512248 in words is "two hundred twelve million, five hundred twelve thousand, two hundred forty-eight".