20122102122012 has 240 divisors, whose sum is σ = 59484320501760. Its totient is φ = 5876212003200.

The previous prime is 20122102121963. The next prime is 20122102122103. The reversal of 20122102122012 is 21022120122102.

It is a happy number.

20122102122012 is a `hidden beast` number, since 201 + 2 + 210 + 21 + 220 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26024658 + ... + 26786694.

It is an arithmetic number, because the mean of its divisors is an integer number (247851335424).

Almost surely, 2^{20122102122012} is an apocalyptic number.

20122102122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122102122012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29742160250880).

20122102122012 is an abundant number, since it is smaller than the sum of its proper divisors (39362218379748).

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

20122102122012 is a wasteful number, since it uses less digits than its factorization.

20122102122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762334 (or 762323 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20122102122012 its reverse (21022120122102), we get a palindrome (41144222244114).

The spelling of 20122102122012 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, one hundred twenty-two thousand, twelve".