2221251030 has 48 divisors (see below), whose sum is σ = 5788692000. Its totient is φ = 590955264.

The previous prime is 2221251023. The next prime is 2221251047. The reversal of 2221251030 is 301521222.

It is a super-2 number, since 2×2221251030² = 9867912276552121800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221250994 and 2221251012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10471 + ... + 67469.

It is an arithmetic number, because the mean of its divisors is an integer number (120597750).

Almost surely, 2^2221251030 is an apocalyptic number.

2221251030 is an abundant number, since it is smaller than the sum of its proper divisors (3567440970).

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

2221251030 is a wasteful number, since it uses less digits than its factorization.

2221251030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57445 (or 57442 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2221251030 is about 47130.1499042810. The cubic root of 2221251030 is about 1304.7657482385.

Adding to 2221251030 its reverse (301521222), we get a palindrome (2522772252).

The spelling of 2221251030 in words is "two billion, two hundred twenty-one million, two hundred fifty-one thousand, thirty".