2122185620 has 48 divisors (see below), whose sum is σ = 4895130240. Its totient is φ = 769228416.

The previous prime is 2122185619. The next prime is 2122185679. The reversal of 2122185620 is 265812212.

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, 112667 + ... + 130146.

It is an arithmetic number, because the mean of its divisors is an integer number (101981880).

Almost surely, 2^2122185620 is an apocalyptic number.

2122185620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122185620 is an abundant number, since it is smaller than the sum of its proper divisors (2772944620).

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

2122185620 is a wasteful number, since it uses less digits than its factorization.

2122185620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242864 (or 242862 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 2122185620 is about 46067.1859353271. The cubic root of 2122185620 is about 1285.0729709706.

Adding to 2122185620 its reverse (265812212), we get a palindrome (2387997832).

The spelling of 2122185620 in words is "two billion, one hundred twenty-two million, one hundred eighty-five thousand, six hundred twenty".