12772101 has 8 divisors (see below), whose sum is σ = 17116704. Its totient is φ = 8471120.

The previous prime is 12772091. The next prime is 12772139. The reversal of 12772101 is 10127721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12772101 - 2⁷ = 12771973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772171) 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, 10215 + ... + 11396.

It is an arithmetic number, because the mean of its divisors is an integer number (2139588).

Almost surely, 2^12772101 is an apocalyptic number.

It is an amenable number.

12772101 is a deficient number, since it is larger than the sum of its proper divisors (4344603).

12772101 is a wasteful number, since it uses less digits than its factorization.

12772101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21811.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 12772101 is about 3573.8076333233. The cubic root of 12772101 is about 233.7513429913.

Adding to 12772101 its reverse (10127721), we get a palindrome (22899822).

The spelling of 12772101 in words is "twelve million, seven hundred seventy-two thousand, one hundred one".