1201020122112 has 88 divisors (see below), whose sum is σ = 3209605932000. Its totient is φ = 399283347456.

The previous prime is 1201020122089. The next prime is 1201020122119. The reversal of 1201020122112 is 2112210201021.

It is a junction number, because it is equal to n+sod(n) for n = 1201020122091 and 1201020122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201020122119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648514 + ... + 1680062.

Almost surely, 2^{1201020122112} is an apocalyptic number.

1201020122112 is a gapful number since it is divisible by the number (12) 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 1201020122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604802966000).

1201020122112 is an abundant number, since it is smaller than the sum of its proper divisors (2008585809888).

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

1201020122112 is a wasteful number, since it uses less digits than its factorization.

1201020122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031951 (or 1031933 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1201020122112 its reverse (2112210201021), we get a palindrome (3313230323133).

The spelling of 1201020122112 in words is "one trillion, two hundred one billion, twenty million, one hundred twenty-two thousand, one hundred twelve".