212011001212004 has 96 divisors (see below), whose sum is σ = 399849282233856. Its totient is φ = 98007397908480.

The previous prime is 212011001211979. The next prime is 212011001212007. The reversal of 212011001212004 is 400212100110212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (212011001212007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305863657 + ... + 1306025999.

It is an arithmetic number, because the mean of its divisors is an integer number (4165096689936).

Almost surely, 2^{212011001212004} is an apocalyptic number.

It is an amenable number.

212011001212004 is a deficient number, since it is larger than the sum of its proper divisors (187838281021852).

212011001212004 is a wasteful number, since it uses less digits than its factorization.

212011001212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163965 (or 163963 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212011001212004 its reverse (400212100110212), we get a palindrome (612223101322216).

The spelling of 212011001212004 in words is "two hundred twelve trillion, eleven billion, one million, two hundred twelve thousand, four".