20202151112 has 128 divisors (see below), whose sum is σ = 45132595200. Its totient is φ = 8357126400.

The previous prime is 20202151087. The next prime is 20202151159. The reversal of 20202151112 is 21115120202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30655439 + ... + 30656097.

It is an arithmetic number, because the mean of its divisors is an integer number (352598400).

Almost surely, 2^20202151112 is an apocalyptic number.

20202151112 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 20202151112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22566297600).

20202151112 is an abundant number, since it is smaller than the sum of its proper divisors (24930444088).

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

20202151112 is a wasteful number, since it uses less digits than its factorization.

20202151112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 20202151112 its reverse (21115120202), we get a palindrome (41317271314).

The spelling of 20202151112 in words is "twenty billion, two hundred two million, one hundred fifty-one thousand, one hundred twelve".