212420400004102 has 16 divisors (see below), whose sum is σ = 319607408455632. Its totient is φ = 105884899372800.

The previous prime is 212420400004069. The next prime is 212420400004121. The reversal of 212420400004102 is 201400004024212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74139828 + ... + 76951639.

It is an arithmetic number, because the mean of its divisors is an integer number (19975463028477).

Almost surely, 2^{212420400004102} is an apocalyptic number.

212420400004102 is a deficient number, since it is larger than the sum of its proper divisors (107187008451530).

212420400004102 is a wasteful number, since it uses less digits than its factorization.

212420400004102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151093623.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212420400004102 its reverse (201400004024212), we get a palindrome (413820404028314).

The spelling of 212420400004102 in words is "two hundred twelve trillion, four hundred twenty billion, four hundred million, four thousand, one hundred two".