2129021230 has 32 divisors (see below), whose sum is σ = 4385041920. Its totient is φ = 729060000.

The previous prime is 2129021221. The next prime is 2129021239. The reversal of 2129021230 is 321209212.

It is an interprime number because it is at equal distance from previous prime (2129021221) and next prime (2129021239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129021239) 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, 40605 + ... + 76855.

It is an arithmetic number, because the mean of its divisors is an integer number (137032560).

Almost surely, 2^2129021230 is an apocalyptic number.

2129021230 is an abundant number, since it is smaller than the sum of its proper divisors (2256020690).

2129021230 is a wasteful number, since it uses less digits than its factorization.

2129021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37104.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2129021230 is about 46141.3180349240. The cubic root of 2129021230 is about 1286.4512423426.

The spelling of 2129021230 in words is "two billion, one hundred twenty-nine million, twenty-one thousand, two hundred thirty".