2122140620 has 24 divisors (see below), whose sum is σ = 4497385200. Its totient is φ = 841067712.

The previous prime is 2122140589. The next prime is 2122140623. The reversal of 2122140620 is 260412212.

It is a happy number.

It is a super-4 number, since 4×2122140620⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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

It is a junction number, because it is equal to n+sod(n) for n = 2122140592 and 2122140601.

It is not an unprimeable number, because it can be changed into a prime (2122140623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484550 + ... + 488909.

It is an arithmetic number, because the mean of its divisors is an integer number (187391050).

Almost surely, 2^2122140620 is an apocalyptic number.

2122140620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122140620 is an abundant number, since it is smaller than the sum of its proper divisors (2375244580).

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

2122140620 is a wasteful number, since it uses less digits than its factorization.

2122140620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973577 (or 973575 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2122140620 is about 46066.6975156674. The cubic root of 2122140620 is about 1285.0638877732.

Adding to 2122140620 its reverse (260412212), we get a palindrome (2382552832).

The spelling of 2122140620 in words is "two billion, one hundred twenty-two million, one hundred forty thousand, six hundred twenty".