20122112010 has 512 divisors, whose sum is σ = 67197247488. Its totient is φ = 3722526720.

The previous prime is 20122112009. The next prime is 20122112053. The reversal of 20122112010 is 1021122102.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 146876662 + ... + 146876798.

It is an arithmetic number, because the mean of its divisors is an integer number (131244624).

Almost surely, 2^20122112010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122112010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33598623744).

20122112010 is an abundant number, since it is smaller than the sum of its proper divisors (47075135478).

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

20122112010 is a wasteful number, since it uses less digits than its factorization.

20122112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20122112010 its reverse (1021122102), we get a palindrome (21143234112).

The spelling of 20122112010 in words is "twenty billion, one hundred twenty-two million, one hundred twelve thousand, ten".