212211000022120 has 128 divisors (see below), whose sum is σ = 538869007514880. Its totient is φ = 74540097280000.

The previous prime is 212211000022069. The next prime is 212211000022123. The reversal of 212211000022120 is 21220000112212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212211000022094 and 212211000022103.

It is not an unprimeable number, because it can be changed into a prime (212211000022123) 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, 56412412 + ... + 60056491.

It is an arithmetic number, because the mean of its divisors is an integer number (4209914121210).

Almost surely, 2^{212211000022120} is an apocalyptic number.

212211000022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211000022120 is an abundant number, since it is smaller than the sum of its proper divisors (326658007492760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212211000022120 is a wasteful number, since it uses less digits than its factorization.

212211000022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116469067 (or 116469063 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212211000022120 its reverse (21220000112212), we get a palindrome (233431000134332).

The spelling of 212211000022120 in words is "two hundred twelve trillion, two hundred eleven billion, twenty-two thousand, one hundred twenty".