2112031212140 has 48 divisors (see below), whose sum is σ = 4490319268512. Its totient is φ = 834388670976.

The previous prime is 2112031212133. The next prime is 2112031212157. The reversal of 2112031212140 is 412121302112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416602 + ... + 2496161.

It is an arithmetic number, because the mean of its divisors is an integer number (93548318094).

Almost surely, 2^{2112031212140} is an apocalyptic number.

2112031212140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112031212140 is an abundant number, since it is smaller than the sum of its proper divisors (2378288056372).

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

2112031212140 is a wasteful number, since it uses less digits than its factorization.

2112031212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913106 (or 3913104 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2112031212140 its reverse (412121302112), we get a palindrome (2524152514252).

The spelling of 2112031212140 in words is "two trillion, one hundred twelve billion, thirty-one million, two hundred twelve thousand, one hundred forty".