2112261541940 has 48 divisors (see below), whose sum is σ = 4859767523520. Its totient is φ = 764798542080.

The previous prime is 2112261541937. The next prime is 2112261541991. The reversal of 2112261541940 is 491451622112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2112261541894 and 2112261541903.

It is a congruent number.

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, 20552150 + ... + 20654669.

It is an arithmetic number, because the mean of its divisors is an integer number (101245156740).

Almost surely, 2^{2112261541940} is an apocalyptic number.

2112261541940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112261541940 is an abundant number, since it is smaller than the sum of its proper divisors (2747505981580).

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

2112261541940 is a wasteful number, since it uses less digits than its factorization.

2112261541940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41207072 (or 41207070 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 2112261541940 in words is "two trillion, one hundred twelve billion, two hundred sixty-one million, five hundred forty-one thousand, nine hundred forty".