222221021012010 has 80 divisors (see below), whose sum is σ = 597593686437000. Its totient is φ = 59252388309504.

The previous prime is 222221021011961. The next prime is 222221021012033. The reversal of 222221021012010 is 10210120122222.

It is a happy number.

222221021012010 is a `hidden beast` number, since 2 + 222 + 210 + 210 + 1 + 20 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 170351597638161 + 51869423373849 = 13051881^2 + 7202043^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7829275 + ... + 22488654.

Almost surely, 2^{222221021012010} is an apocalyptic number.

222221021012010 is an abundant number, since it is smaller than the sum of its proper divisors (375372665424990).

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

222221021012010 is a wasteful number, since it uses less digits than its factorization.

222221021012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30326997 (or 30326988 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222221021012010 its reverse (10210120122222), we get a palindrome (232431141134232).

The spelling of 222221021012010 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, twelve thousand, ten".