221132321212202 has 16 divisors (see below), whose sum is σ = 339412835120832. Its totient is φ = 107994716098080.

The previous prime is 221132321212171. The next prime is 221132321212249. The reversal of 221132321212202 is 202212123231122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107958302 + ... + 109987542.

It is an arithmetic number, because the mean of its divisors is an integer number (21213302195052).

Almost surely, 2^{221132321212202} is an apocalyptic number.

221132321212202 is a deficient number, since it is larger than the sum of its proper divisors (118280513908630).

221132321212202 is a wasteful number, since it uses less digits than its factorization.

221132321212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296413.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221132321212202 its reverse (202212123231122), we get a palindrome (423344444443324).

The spelling of 221132321212202 in words is "two hundred twenty-one trillion, one hundred thirty-two billion, three hundred twenty-one million, two hundred twelve thousand, two hundred two".