1011121001112 has 64 divisors (see below), whose sum is σ = 2590335871200. Its totient is φ = 328708136960.

The previous prime is 1011121001101. The next prime is 1011121001113. The reversal of 1011121001112 is 2111001211101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011121001113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748448 + ... + 3094544.

Almost surely, 2^{1011121001112} is an apocalyptic number.

1011121001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011121001112 is an abundant number, since it is smaller than the sum of its proper divisors (1579214870088).

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

1011121001112 is a wasteful number, since it uses less digits than its factorization.

1011121001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349116 (or 349112 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011121001112 its reverse (2111001211101), we get a palindrome (3122122212213).

The spelling of 1011121001112 in words is "one trillion, eleven billion, one hundred twenty-one million, one thousand, one hundred twelve".