2221033140 has 72 divisors (see below), whose sum is σ = 6901477128. Its totient is φ = 577827840.

The previous prime is 2221033109. The next prime is 2221033259. The reversal of 2221033140 is 413301222.

It can be written as a sum of positive squares in 4 ways, for example, as 9400356 + 2211632784 = 3066^2 + 47028^2 .

It is a super-3 number, since 3×2221033140³ (a number of 29 digits) contains 333 as substring.

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

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, 143097 + ... + 157856.

It is an arithmetic number, because the mean of its divisors is an integer number (95853849).

Almost surely, 2^2221033140 is an apocalyptic number.

2221033140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221033140 is an abundant number, since it is smaller than the sum of its proper divisors (4680443988).

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

2221033140 is a wasteful number, since it uses less digits than its factorization.

2221033140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301009 (or 301004 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2221033140 is about 47127.8382699652. The cubic root of 2221033140 is about 1304.7230838868.

Adding to 2221033140 its reverse (413301222), we get a palindrome (2634334362).

The spelling of 2221033140 in words is "two billion, two hundred twenty-one million, thirty-three thousand, one hundred forty".