1220194229 has 8 divisors (see below), whose sum is σ = 1278961152. Its totient is φ = 1161903600.

The previous prime is 1220194223. The next prime is 1220194237. The reversal of 1220194229 is 9224910221.

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 1220194229 - 2⁸ = 1220193973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220194195 and 1220194204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220194223) 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, 113822 + ... + 124079.

It is an arithmetic number, because the mean of its divisors is an integer number (159870144).

Almost surely, 2^1220194229 is an apocalyptic number.

It is an amenable number.

1220194229 is a deficient number, since it is larger than the sum of its proper divisors (58766923).

1220194229 is a wasteful number, since it uses less digits than its factorization.

1220194229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238147.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1220194229 is about 34931.2786625397. The cubic root of 1220194229 is about 1068.5864319107.

The spelling of 1220194229 in words is "one billion, two hundred twenty million, one hundred ninety-four thousand, two hundred twenty-nine".