2121601130 has 32 divisors (see below), whose sum is σ = 4244669568. Its totient is φ = 756932800.

The previous prime is 2121601109. The next prime is 2121601133. The reversal of 2121601130 is 311061212.

It is a junction number, because it is equal to n+sod(n) for n = 2121601099 and 2121601108.

It is not an unprimeable number, because it can be changed into a prime (2121601133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176126 + ... + 187785.

It is an arithmetic number, because the mean of its divisors is an integer number (132645924).

Almost surely, 2^2121601130 is an apocalyptic number.

2121601130 is an abundant number, since it is smaller than the sum of its proper divisors (2123068438).

2121601130 is a wasteful number, since it uses less digits than its factorization.

2121601130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363982.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2121601130 is about 46060.8416119376. The cubic root of 2121601130 is about 1284.9549823490.

Adding to 2121601130 its reverse (311061212), we get a palindrome (2432662342).

The spelling of 2121601130 in words is "two billion, one hundred twenty-one million, six hundred one thousand, one hundred thirty".