1101020012112 has 40 divisors (see below), whose sum is σ = 2844482145856. Its totient is φ = 366983387136.

The previous prime is 1101020012069. The next prime is 1101020012137. The reversal of 1101020012112 is 2112100201011.

It is a super-2 number, since 2×1101020012112² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 45333 + ... + 1484619.

Almost surely, 2^{1101020012112} is an apocalyptic number.

1101020012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101020012112 is an abundant number, since it is smaller than the sum of its proper divisors (1743462133744).

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

1101020012112 is a wasteful number, since it uses less digits than its factorization.

1101020012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455235 (or 1455229 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101020012112 its reverse (2112100201011), we get a palindrome (3213120213123).

The spelling of 1101020012112 in words is "one trillion, one hundred one billion, twenty million, twelve thousand, one hundred twelve".