2120422140 has 36 divisors (see below), whose sum is σ = 6431947704. Its totient is φ = 565445856.

The previous prime is 2120422093. The next prime is 2120422219. The reversal of 2120422140 is 412240212.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5889882 + ... + 5890241.

It is an arithmetic number, because the mean of its divisors is an integer number (178665214).

Almost surely, 2^2120422140 is an apocalyptic number.

2120422140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120422140 is an abundant number, since it is smaller than the sum of its proper divisors (4311525564).

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

2120422140 is a wasteful number, since it uses less digits than its factorization.

2120422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780138 (or 11780133 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2120422140 is about 46048.0416521702. The cubic root of 2120422140 is about 1284.7169184700.

Adding to 2120422140 its reverse (412240212), we get a palindrome (2532662352).

The spelling of 2120422140 in words is "two billion, one hundred twenty million, four hundred twenty-two thousand, one hundred forty".