212013214040 has 32 divisors (see below), whose sum is σ = 477065728080. Its totient is φ = 84798886272.

The previous prime is 212013214031. The next prime is 212013214051. The reversal of 212013214040 is 40412310212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 355802 + ... + 742038.

Almost surely, 2^212013214040 is an apocalyptic number.

212013214040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212013214040 is an abundant number, since it is smaller than the sum of its proper divisors (265052514040).

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

212013214040 is a wasteful number, since it uses less digits than its factorization.

212013214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399971 (or 399967 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212013214040 its reverse (40412310212), we get a palindrome (252425524252).

The spelling of 212013214040 in words is "two hundred twelve billion, thirteen million, two hundred fourteen thousand, forty".