221000212202010 has 32 divisors (see below), whose sum is σ = 530414188185600. Its totient is φ = 58931870042688.

The previous prime is 221000212201933. The next prime is 221000212202117. The reversal of 221000212202010 is 10202212000122.

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 15 ways as a sum of consecutive naturals, for example, 93809485 + ... + 96136464.

It is an arithmetic number, because the mean of its divisors is an integer number (16575443380800).

Almost surely, 2^{221000212202010} is an apocalyptic number.

221000212202010 is an abundant number, since it is smaller than the sum of its proper divisors (309413975983590).

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

221000212202010 is a wasteful number, since it uses less digits than its factorization.

221000212202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189984742.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221000212202010 its reverse (10202212000122), we get a palindrome (231202424202132).

The spelling of 221000212202010 in words is "two hundred twenty-one trillion, two hundred twelve million, two hundred two thousand, ten".