212501544402 has 32 divisors (see below), whose sum is σ = 485921020032. Its totient is φ = 60689326464.

The previous prime is 212501544401. The next prime is 212501544403. The reversal of 212501544402 is 204445105212.

212501544402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212501544401) and next prime (212501544403).

It is a self number, because there is not a number n which added to its sum of digits gives 212501544402.

It is not an unprimeable number, because it can be changed into a prime (212501544401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956653 + ... + 1157664.

It is an arithmetic number, because the mean of its divisors is an integer number (15185031876).

Almost surely, 2^212501544402 is an apocalyptic number.

212501544402 is an abundant number, since it is smaller than the sum of its proper divisors (273419475630).

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

212501544402 is a wasteful number, since it uses less digits than its factorization.

212501544402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116722.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 212501544402 its reverse (204445105212), we get a palindrome (416946649614).

The spelling of 212501544402 in words is "two hundred twelve billion, five hundred one million, five hundred forty-four thousand, four hundred two".