20122120312212 has 24 divisors (see below), whose sum is σ = 46952896623136. Its totient is φ = 6707190214368.

The previous prime is 20122120312193. The next prime is 20122120312213. The reversal of 20122120312212 is 21221302122102.

It is a super-3 number, since 3×20122120312212³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122120312213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22444918 + ... + 23324205.

Almost surely, 2^{20122120312212} is an apocalyptic number.

It is an amenable number.

20122120312212 is an abundant number, since it is smaller than the sum of its proper divisors (26830776310924).

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

20122120312212 is a wasteful number, since it uses less digits than its factorization.

20122120312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45805767 (or 45805765 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20122120312212 its reverse (21221302122102), we get a palindrome (41343422434314).

The spelling of 20122120312212 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty million, three hundred twelve thousand, two hundred twelve".