2121022230 has 32 divisors (see below), whose sum is σ = 5111769600. Its totient is φ = 563237472.

The previous prime is 2121022223. The next prime is 2121022249. The reversal of 2121022230 is 322201212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 140740 + ... + 155079.

It is an arithmetic number, because the mean of its divisors is an integer number (159742800).

Almost surely, 2^2121022230 is an apocalyptic number.

2121022230 is an abundant number, since it is smaller than the sum of its proper divisors (2990747370).

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

2121022230 is a wasteful number, since it uses less digits than its factorization.

2121022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296068.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2121022230 is about 46054.5571035050. The cubic root of 2121022230 is about 1284.8381007958.

Adding to 2121022230 its reverse (322201212), we get a palindrome (2443223442).

The spelling of 2121022230 in words is "two billion, one hundred twenty-one million, twenty-two thousand, two hundred thirty".