221121210102200 has 48 divisors (see below), whose sum is σ = 514740731021160. Its totient is φ = 88339422960000.

The previous prime is 221121210102167. The next prime is 221121210102229. The reversal of 221121210102200 is 2201012121122.

221121210102200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221121210102200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681469151 + ... + 681793550.

Almost surely, 2^{221121210102200} is an apocalyptic number.

221121210102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221121210102200 is an abundant number, since it is smaller than the sum of its proper divisors (293619520918960).

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

221121210102200 is a wasteful number, since it uses less digits than its factorization.

221121210102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363263528 (or 1363263519 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221121210102200 its reverse (2201012121122), we get a palindrome (223322222223322).

The spelling of 221121210102200 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two hundred ten million, one hundred two thousand, two hundred".