222040020 has 48 divisors (see below), whose sum is σ = 623060928. Its totient is φ = 59082240.

The previous prime is 222040001. The next prime is 222040057. The reversal of 222040020 is 20040222.

It is a happy number.

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 = 222039978 and 222040005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25692 + ... + 33228.

It is an arithmetic number, because the mean of its divisors is an integer number (12980436).

Almost surely, 2^222040020 is an apocalyptic number.

222040020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222040020 is an abundant number, since it is smaller than the sum of its proper divisors (401020908).

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

222040020 is a wasteful number, since it uses less digits than its factorization.

222040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222040020 is about 14901.0073484983. The cubic root of 222040020 is about 605.5412773086.

Adding to 222040020 its reverse (20040222), we get a palindrome (242080242).

The spelling of 222040020 in words is "two hundred twenty-two million, forty thousand, twenty".