20122002220212 has 72 divisors (see below), whose sum is σ = 51341329611936. Its totient is φ = 6644387847744.

The previous prime is 20122002220169. The next prime is 20122002220213. The reversal of 20122002220212 is 21202220022102.

20122002220212 is a `hidden beast` number, since 20 + 12 + 200 + 2 + 220 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122002220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114713518 + ... + 114888794.

It is an arithmetic number, because the mean of its divisors is an integer number (713074022388).

Almost surely, 2^{20122002220212} is an apocalyptic number.

It is an amenable number.

20122002220212 is an abundant number, since it is smaller than the sum of its proper divisors (31219327391724).

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

20122002220212 is a wasteful number, since it uses less digits than its factorization.

20122002220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205197 (or 205192 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20122002220212 its reverse (21202220022102), we get a palindrome (41324222242314).

The spelling of 20122002220212 in words is "twenty trillion, one hundred twenty-two billion, two million, two hundred twenty thousand, two hundred twelve".