2231000220 has 24 divisors (see below), whose sum is σ = 6246800784. Its totient is φ = 594933376.

The previous prime is 2231000209. The next prime is 2231000221. The reversal of 2231000220 is 220001322.

2231000220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231000220³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2231000196 and 2231000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231000221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18591609 + ... + 18591728.

It is an arithmetic number, because the mean of its divisors is an integer number (260283366).

Almost surely, 2^2231000220 is an apocalyptic number.

2231000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231000220 is an abundant number, since it is smaller than the sum of its proper divisors (4015800564).

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

2231000220 is a wasteful number, since it uses less digits than its factorization.

2231000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37183349 (or 37183347 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2231000220 is about 47233.4650433355. The cubic root of 2231000220 is about 1306.6718579147.

Adding to 2231000220 its reverse (220001322), we get a palindrome (2451001542).

The spelling of 2231000220 in words is "two billion, two hundred thirty-one million, two hundred twenty", and thus it is an aban number.