221101036 has 24 divisors (see below), whose sum is σ = 420746144. Its totient is φ = 101053440.

The previous prime is 221101007. The next prime is 221101039. The reversal of 221101036 is 630101122.

It is not an unprimeable number, because it can be changed into a prime (221101039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15285 + ... + 25996.

Almost surely, 2^221101036 is an apocalyptic number.

221101036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

221101036 is a deficient number, since it is larger than the sum of its proper divisors (199645108).

221101036 is a wasteful number, since it uses less digits than its factorization.

221101036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41401 (or 41399 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 221101036 is about 14869.4665674327. The cubic root of 221101036 is about 604.6864810026.

Adding to 221101036 its reverse (630101122), we get a palindrome (851202158).

The spelling of 221101036 in words is "two hundred twenty-one million, one hundred one thousand, thirty-six".