212412102042021 has 16 divisors (see below), whose sum is σ = 323675801315328. Its totient is φ = 121378262554800.

The previous prime is 212412102042001. The next prime is 212412102042053. The reversal of 212412102042021 is 120240201214212.

It is not a de Polignac number, because 212412102042021 - 2⁹ = 212412102041509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212412102041982 and 212412102042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212412102042001) 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, 44075536 + ... + 48656726.

It is an arithmetic number, because the mean of its divisors is an integer number (20229737582208).

Almost surely, 2^{212412102042021} is an apocalyptic number.

212412102042021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212412102042021 is a deficient number, since it is larger than the sum of its proper divisors (111263699273307).

212412102042021 is a wasteful number, since it uses less digits than its factorization.

212412102042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789112.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 212412102042021 its reverse (120240201214212), we get a palindrome (332652303256233).

The spelling of 212412102042021 in words is "two hundred twelve trillion, four hundred twelve billion, one hundred two million, forty-two thousand, twenty-one".