12121701 has 8 divisors (see below), whose sum is σ = 16253280. Its totient is φ = 8035632.

The previous prime is 12121699. The next prime is 12121721. The reversal of 12121701 is 10712121.

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

It is not a de Polignac number, because 12121701 - 2¹ = 12121699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121721) 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, 10750 + ... + 11823.

It is an arithmetic number, because the mean of its divisors is an integer number (2031660).

Almost surely, 2^12121701 is an apocalyptic number.

It is an amenable number.

12121701 is a deficient number, since it is larger than the sum of its proper divisors (4131579).

12121701 is a wasteful number, since it uses less digits than its factorization.

12121701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755.

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

The square root of 12121701 is about 3481.6233282766. The cubic root of 12121701 is about 229.7142070939.

Adding to 12121701 its reverse (10712121), we get a palindrome (22833822).

The spelling of 12121701 in words is "twelve million, one hundred twenty-one thousand, seven hundred one".