222012020 has 48 divisors (see below), whose sum is σ = 478517760. Its totient is φ = 86482944.

The previous prime is 222012019. The next prime is 222012029. The reversal of 222012020 is 20210222.

It is a junction number, because it is equal to n+sod(n) for n = 222011992 and 222012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241121 + ... + 242039.

It is an arithmetic number, because the mean of its divisors is an integer number (9969120).

Almost surely, 2^222012020 is an apocalyptic number.

222012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012020 is an abundant number, since it is smaller than the sum of its proper divisors (256505740).

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

222012020 is a wasteful number, since it uses less digits than its factorization.

222012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222012020 is about 14900.0677850807. The cubic root of 222012020 is about 605.5158226353.

Adding to 222012020 its reverse (20210222), we get a palindrome (242222242).

The spelling of 222012020 in words is "two hundred twenty-two million, twelve thousand, twenty".