222121201010010 has 64 divisors (see below), whose sum is σ = 533713158490752. Its totient is φ = 59163206091776.

The previous prime is 222121201010003. The next prime is 222121201010057. The reversal of 222121201010010 is 10010102121222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128245702 + ... + 129966158.

It is an arithmetic number, because the mean of its divisors is an integer number (8339268101418).

Almost surely, 2^{222121201010010} is an apocalyptic number.

222121201010010 is an abundant number, since it is smaller than the sum of its proper divisors (311591957480742).

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

222121201010010 is a wasteful number, since it uses less digits than its factorization.

222121201010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725487.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222121201010010 its reverse (10010102121222), we get a palindrome (232131303131232).

The spelling of 222121201010010 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, ten thousand, ten".