1001220122112 has 80 divisors (see below), whose sum is σ = 3048357725952. Its totient is φ = 286062888960.

The previous prime is 1001220122107. The next prime is 1001220122159. The reversal of 1001220122112 is 2112210221001.

It is a junction number, because it is equal to n+sod(n) for n = 1001220122091 and 1001220122100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46548964 + ... + 46570467.

Almost surely, 2^{1001220122112} is an apocalyptic number.

1001220122112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001220122112 is an abundant number, since it is smaller than the sum of its proper divisors (2047137603840).

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

1001220122112 is an frugal number, since it uses more digits than its factorization.

1001220122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93119459 (or 93119443 counting only the distinct ones).

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

Adding to 1001220122112 its reverse (2112210221001), we get a palindrome (3113430343113).

The spelling of 1001220122112 in words is "one trillion, one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twelve".