221213023301100 has 144 divisors (see below), whose sum is σ = 640422053365248. Its totient is φ = 58955215580160.

The previous prime is 221213023301071. The next prime is 221213023301141. The reversal of 221213023301100 is 1103320312122.

It is a super-2 number, since 2×221213023301100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3777064017 + ... + 3777122583.

It is an arithmetic number, because the mean of its divisors is an integer number (4447375370592).

Almost surely, 2^{221213023301100} is an apocalyptic number.

221213023301100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221213023301100 is an abundant number, since it is smaller than the sum of its proper divisors (419209030064148).

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

221213023301100 is a wasteful number, since it uses less digits than its factorization.

221213023301100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65824 (or 65817 counting only the distinct ones).

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

Adding to 221213023301100 its reverse (1103320312122), we get a palindrome (222316343613222).

The spelling of 221213023301100 in words is "two hundred twenty-one trillion, two hundred thirteen billion, twenty-three million, three hundred one thousand, one hundred".