20001122 has 8 divisors (see below), whose sum is σ = 31306176. Its totient is φ = 9565732.

The previous prime is 20001083. The next prime is 20001139. The reversal of 20001122 is 22110002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217358 + ... + 217449.

It is an arithmetic number, because the mean of its divisors is an integer number (3913272).

Almost surely, 2^20001122 is an apocalyptic number.

20001122 is a deficient number, since it is larger than the sum of its proper divisors (11305054).

20001122 is a wasteful number, since it uses less digits than its factorization.

20001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434832.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 20001122 is about 4472.2613966538. The cubic root of 20001122 is about 271.4468375255.

Adding to 20001122 its reverse (22110002), we get a palindrome (42111124).

The spelling of 20001122 in words is "twenty million, one thousand, one hundred twenty-two".