221112212002 has 16 divisors (see below), whose sum is σ = 383103512352. Its totient is φ = 94593459520.

The previous prime is 221112211987. The next prime is 221112212029. The reversal of 221112212002 is 200212211122.

It is a happy number.

It is a super-2 number, since 2×221112212002² (a number of 23 digits) contains 22 as substring.

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, 295604188 + ... + 295604935.

It is an arithmetic number, because the mean of its divisors is an integer number (23943969522).

Almost surely, 2^221112212002 is an apocalyptic number.

221112212002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221112212002 is a deficient number, since it is larger than the sum of its proper divisors (161991300350).

221112212002 is a wasteful number, since it uses less digits than its factorization.

221112212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591209153.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221112212002 its reverse (200212211122), we get a palindrome (421324423124).

The spelling of 221112212002 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred twelve thousand, two".