212040500502 has 32 divisors (see below), whose sum is σ = 426432504960. Its totient is φ = 70288787520.

The previous prime is 212040500491. The next prime is 212040500549. The reversal of 212040500502 is 205005040212.

It is a happy number.

It is a super-2 number, since 2×212040500502² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1527378 + ... + 1660410.

It is an arithmetic number, because the mean of its divisors is an integer number (13326015780).

Almost surely, 2^212040500502 is an apocalyptic number.

212040500502 is an abundant number, since it is smaller than the sum of its proper divisors (214392004458).

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

212040500502 is a wasteful number, since it uses less digits than its factorization.

212040500502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134508.

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 212040500502 its reverse (205005040212), we get a palindrome (417045540714).

The spelling of 212040500502 in words is "two hundred twelve billion, forty million, five hundred thousand, five hundred two".