221331123100002 has 32 divisors (see below), whose sum is σ = 454627359288000. Its totient is φ = 71782866646848.

The previous prime is 221331123099973. The next prime is 221331123100027. The reversal of 221331123100002 is 200001321133122.

It is a super-3 number, since 3×221331123100002³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92626149 + ... + 94985607.

It is an arithmetic number, because the mean of its divisors is an integer number (14207104977750).

Almost surely, 2^{221331123100002} is an apocalyptic number.

221331123100002 is an abundant number, since it is smaller than the sum of its proper divisors (233296236187998).

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

221331123100002 is a wasteful number, since it uses less digits than its factorization.

221331123100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782050.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 221331123100002 its reverse (200001321133122), we get a palindrome (421332444233124).

The spelling of 221331123100002 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, one hundred twenty-three million, one hundred thousand, two".