20120122100212 has 48 divisors (see below), whose sum is σ = 37941291720640. Its totient is φ = 9305022811392.

The previous prime is 20120122100209. The next prime is 20120122100233. The reversal of 20120122100212 is 21200122102102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6472978 + ... + 9063094.

Almost surely, 2^{20120122100212} is an apocalyptic number.

It is an amenable number.

20120122100212 is a deficient number, since it is larger than the sum of its proper divisors (17821169620428).

20120122100212 is a wasteful number, since it uses less digits than its factorization.

20120122100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592560 (or 2592558 counting only the distinct ones).

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

Adding to 20120122100212 its reverse (21200122102102), we get a palindrome (41320244202314).

The spelling of 20120122100212 in words is "twenty trillion, one hundred twenty billion, one hundred twenty-two million, one hundred thousand, two hundred twelve".