221121200102 has 16 divisors (see below), whose sum is σ = 362024500032. Its totient is φ = 100456911720.

The previous prime is 221121200099. The next prime is 221121200149. The reversal of 221121200102 is 201002121122.

It is a congruent number.

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, 2593328 + ... + 2677235.

It is an arithmetic number, because the mean of its divisors is an integer number (22626531252).

Almost surely, 2^221121200102 is an apocalyptic number.

221121200102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221121200102 is a deficient number, since it is larger than the sum of its proper divisors (140903299930).

221121200102 is a wasteful number, since it uses less digits than its factorization.

221121200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272483.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221121200102 its reverse (201002121122), we get a palindrome (422123321224).

The spelling of 221121200102 in words is "two hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, one hundred two".