20120201112 has 64 divisors (see below), whose sum is σ = 55416648960. Its totient is φ = 6036656000.

The previous prime is 20120201081. The next prime is 20120201137. The reversal of 20120201112 is 21110202102.

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 15 ways as a sum of consecutive naturals, for example, 350628 + ... + 403955.

It is an arithmetic number, because the mean of its divisors is an integer number (865885140).

Almost surely, 2^20120201112 is an apocalyptic number.

20120201112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120201112 is an abundant number, since it is smaller than the sum of its proper divisors (35296447848).

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

20120201112 is a wasteful number, since it uses less digits than its factorization.

20120201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754704 (or 754700 counting only the distinct ones).

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

Adding to 20120201112 its reverse (21110202102), we get a palindrome (41230403214).

The spelling of 20120201112 in words is "twenty billion, one hundred twenty million, two hundred one thousand, one hundred twelve".