212211220120012 has 36 divisors (see below), whose sum is σ = 396237809525544. Its totient is φ = 99424173491200.

The previous prime is 212211220119931. The next prime is 212211220120057. The reversal of 212211220120012 is 210021022112212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404084989 + ... + 404609812.

It is an arithmetic number, because the mean of its divisors is an integer number (11006605820154).

Almost surely, 2^{212211220120012} is an apocalyptic number.

It is an amenable number.

212211220120012 is a deficient number, since it is larger than the sum of its proper divisors (184026589405532).

212211220120012 is a wasteful number, since it uses less digits than its factorization.

212211220120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808695066 (or 808695047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211220120012 its reverse (210021022112212), we get a palindrome (422232242232224).

The spelling of 212211220120012 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty million, one hundred twenty thousand, twelve".