20122011111000 has 256 divisors, whose sum is σ = 64012498093440. Its totient is φ = 5260735334400.

The previous prime is 20122011110977. The next prime is 20122011111023. The reversal of 20122011111000 is 11111022102.

It is an interprime number because it is at equal distance from previous prime (20122011110977) and next prime (20122011111023).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218260914 + ... + 218353086.

Almost surely, 2^{20122011111000} is an apocalyptic number.

20122011111000 is a gapful number since it is divisible by the number (20) 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 20122011111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32006249046720).

20122011111000 is an abundant number, since it is smaller than the sum of its proper divisors (43890486982440).

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

20122011111000 is a wasteful number, since it uses less digits than its factorization.

20122011111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93623 (or 93609 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20122011111000 its reverse (11111022102), we get a palindrome (20133122133102).

The spelling of 20122011111000 in words is "twenty trillion, one hundred twenty-two billion, eleven million, one hundred eleven thousand".