12021020122112 has 44 divisors (see below), whose sum is σ = 24278036228880. Its totient is φ = 5948545990656.

The previous prime is 12021020122093. The next prime is 12021020122117. The reversal of 12021020122112 is 21122102012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021020122117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60412412 + ... + 60611067.

Almost surely, 2^{12021020122112} is an apocalyptic number.

It is an amenable number.

12021020122112 is an abundant number, since it is smaller than the sum of its proper divisors (12257016106768).

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

12021020122112 is an equidigital number, since it uses as much as digits as its factorization.

12021020122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121023596 (or 121023578 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021020122112 its reverse (21122102012021), we get a palindrome (33143122134133).

The spelling of 12021020122112 in words is "twelve trillion, twenty-one billion, twenty million, one hundred twenty-two thousand, one hundred twelve".