12121773 has 16 divisors (see below), whose sum is σ = 16699200. Its totient is φ = 7816320.

The previous prime is 12121771. The next prime is 12121783. The reversal of 12121773 is 37712121.

It is not a de Polignac number, because 12121773 - 2¹ = 12121771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121771) 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, 16743 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (1043700).

Almost surely, 2^12121773 is an apocalyptic number.

It is an amenable number.

12121773 is a deficient number, since it is larger than the sum of its proper divisors (4577427).

12121773 is a wasteful number, since it uses less digits than its factorization.

12121773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its digits is 588, while the sum is 24.

The square root of 12121773 is about 3481.6336682655. The cubic root of 12121773 is about 229.7146619088.

Adding to 12121773 its reverse (37712121), we get a palindrome (49833894).

The spelling of 12121773 in words is "twelve million, one hundred twenty-one thousand, seven hundred seventy-three".