221110001011210 has 32 divisors (see below), whose sum is σ = 411727865650560. Its totient is φ = 85393005402432.

The previous prime is 221110001011139. The next prime is 221110001011213. The reversal of 221110001011210 is 12110100011122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221110001011213) 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, 15413037 + ... + 26072623.

It is an arithmetic number, because the mean of its divisors is an integer number (12866495801580).

Almost surely, 2^{221110001011210} is an apocalyptic number.

221110001011210 is a deficient number, since it is larger than the sum of its proper divisors (190617864639350).

221110001011210 is a wasteful number, since it uses less digits than its factorization.

221110001011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10731150.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221110001011210 its reverse (12110100011122), we get a palindrome (233220101022332).

The spelling of 221110001011210 in words is "two hundred twenty-one trillion, one hundred ten billion, one million, eleven thousand, two hundred ten".