212401220400039 has 24 divisors (see below), whose sum is σ = 319234754537856. Its totient is φ = 124575495817200.

The previous prime is 212401220400023. The next prime is 212401220400079. The reversal of 212401220400039 is 930004022104212.

It is not a de Polignac number, because 212401220400039 - 2⁴ = 212401220400023 is a prime.

It is a super-2 number, since 2×212401220400039² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212401220399979 and 212401220400015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212401220400079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3348771939 + ... + 3348835364.

It is an arithmetic number, because the mean of its divisors is an integer number (13301448105744).

Almost surely, 2^{212401220400039} is an apocalyptic number.

212401220400039 is a deficient number, since it is larger than the sum of its proper divisors (106833534137817).

212401220400039 is a wasteful number, since it uses less digits than its factorization.

212401220400039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697607379 (or 6697607348 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 212401220400039 in words is "two hundred twelve trillion, four hundred one billion, two hundred twenty million, four hundred thousand, thirty-nine".