12220250749 has 8 divisors (see below), whose sum is σ = 13966924608. Its totient is φ = 10473807840.

The previous prime is 12220250741. The next prime is 12220250803. The reversal of 12220250749 is 94705202221.

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 12220250749 - 2³ = 12220250741 is a prime.

It is a super-2 number, since 2×12220250749² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220250741) 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, 76449 + ... + 174025.

It is an arithmetic number, because the mean of its divisors is an integer number (1745865576).

Almost surely, 2^12220250749 is an apocalyptic number.

It is an amenable number.

12220250749 is a deficient number, since it is larger than the sum of its proper divisors (1746673859).

12220250749 is an equidigital number, since it uses as much as digits as its factorization.

12220250749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115475.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 12220250749 in words is "twelve billion, two hundred twenty million, two hundred fifty thousand, seven hundred forty-nine".