1221133119 has 8 divisors (see below), whose sum is σ = 1628338992. Its totient is φ = 814008000.

The previous prime is 1221133117. The next prime is 1221133139. The reversal of 1221133119 is 9113311221.

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

It is not a de Polignac number, because 1221133119 - 2¹ = 1221133117 is a prime.

It is a super-2 number, since 2×1221133119² = 2982332188637336322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221133117) 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, 48067 + ... + 68939.

It is an arithmetic number, because the mean of its divisors is an integer number (203542374).

Almost surely, 2^1221133119 is an apocalyptic number.

1221133119 is a deficient number, since it is larger than the sum of its proper divisors (407205873).

1221133119 is a wasteful number, since it uses less digits than its factorization.

1221133119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40377.

The product of its digits is 324, while the sum is 24.

The square root of 1221133119 is about 34944.7151798380. The cubic root of 1221133119 is about 1068.8604396252.

The spelling of 1221133119 in words is "one billion, two hundred twenty-one million, one hundred thirty-three thousand, one hundred nineteen".