212204010040 has 64 divisors (see below), whose sum is σ = 521206254720. Its totient is φ = 77114448000.

The previous prime is 212204010019. The next prime is 212204010041. The reversal of 212204010040 is 40010402212.

It is a junction number, because it is equal to n+sod(n) for n = 212204009996 and 212204010023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212204010041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516135 + ... + 831145.

It is an arithmetic number, because the mean of its divisors is an integer number (8143847730).

Almost surely, 2^212204010040 is an apocalyptic number.

212204010040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212204010040 is an abundant number, since it is smaller than the sum of its proper divisors (309002244680).

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

212204010040 is a wasteful number, since it uses less digits than its factorization.

212204010040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316564 (or 316560 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212204010040 its reverse (40010402212), we get a palindrome (252214412252).

The spelling of 212204010040 in words is "two hundred twelve billion, two hundred four million, ten thousand, forty".