2021122230 has 64 divisors (see below), whose sum is σ = 5050261440. Its totient is φ = 517031424.

The previous prime is 2021122219. The next prime is 2021122241. The reversal of 2021122230 is 322211202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2021122219) and next prime (2021122241).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129192 + ... + 143988.

It is an arithmetic number, because the mean of its divisors is an integer number (78910335).

Almost surely, 2^2021122230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021122230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525130720).

2021122230 is an abundant number, since it is smaller than the sum of its proper divisors (3029139210).

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

2021122230 is a wasteful number, since it uses less digits than its factorization.

2021122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993.

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

The square root of 2021122230 is about 44956.8930198696. The cubic root of 2021122230 is about 1264.3409170116.

Adding to 2021122230 its reverse (322211202), we get a palindrome (2343333432).

It can be divided in two parts, 2021 and 122230, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 2021122230 in words is "two billion, twenty-one million, one hundred twenty-two thousand, two hundred thirty".