221133010100 has 36 divisors (see below), whose sum is σ = 500722055904. Its totient is φ = 84607411680.

The previous prime is 221133010073. The next prime is 221133010121. The reversal of 221133010100 is 1010331122.

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, 48070094 + ... + 48074693.

Almost surely, 2^221133010100 is an apocalyptic number.

221133010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221133010100 is an abundant number, since it is smaller than the sum of its proper divisors (279589045804).

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

221133010100 is a wasteful number, since it uses less digits than its factorization.

221133010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96144824 (or 96144817 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 221133010100 its reverse (1010331122), we get a palindrome (222143341222).

The spelling of 221133010100 in words is "two hundred twenty-one billion, one hundred thirty-three million, ten thousand, one hundred".