11722101 has 16 divisors (see below), whose sum is σ = 16188480. Its totient is φ = 7539840.

The previous prime is 11722097. The next prime is 11722127. The reversal of 11722101 is 10122711.

11722101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11722101 - 2² = 11722097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10971 + ... + 11991.

It is an arithmetic number, because the mean of its divisors is an integer number (1011780).

Almost surely, 2^11722101 is an apocalyptic number.

It is an amenable number.

11722101 is a deficient number, since it is larger than the sum of its proper divisors (4466379).

11722101 is a wasteful number, since it uses less digits than its factorization.

11722101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 11722101 is about 3423.7553943002. The cubic root of 11722101 is about 227.1617224268.

Adding to 11722101 its reverse (10122711), we get a palindrome (21844812).

The spelling of 11722101 in words is "eleven million, seven hundred twenty-two thousand, one hundred one".