222120012010 has 32 divisors (see below), whose sum is σ = 430618102992. Its totient is φ = 82004590080.

The previous prime is 222120011977. The next prime is 222120012083. The reversal of 222120012010 is 10210021222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 40406226169 + 181713785841 = 201013^2 + 426279^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 1167502 + ... + 1344358.

Almost surely, 2^222120012010 is an apocalyptic number.

222120012010 is a deficient number, since it is larger than the sum of its proper divisors (208498090982).

222120012010 is a wasteful number, since it uses less digits than its factorization.

222120012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186538.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222120012010 its reverse (10210021222), we get a palindrome (232330033232).

The spelling of 222120012010 in words is "two hundred twenty-two billion, one hundred twenty million, twelve thousand, ten".