1221230335 has 24 divisors (see below), whose sum is σ = 1593031104. Its totient is φ = 898335360.

The previous prime is 1221230327. The next prime is 1221230341. The reversal of 1221230335 is 5330321221.

It is not a de Polignac number, because 1221230335 - 2³ = 1221230327 is a prime.

It is a super-2 number, since 2×1221230335² = 2982807062248424450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226329 + ... + 231661.

It is an arithmetic number, because the mean of its divisors is an integer number (66376296).

Almost surely, 2^1221230335 is an apocalyptic number.

1221230335 is a deficient number, since it is larger than the sum of its proper divisors (371800769).

1221230335 is a wasteful number, since it uses less digits than its factorization.

1221230335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635 (or 5622 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1221230335 is about 34946.1061493266. The cubic root of 1221230335 is about 1068.8888033304. Note that the first 4 decimals are identical.

Adding to 1221230335 its reverse (5330321221), we get a palindrome (6551551556).

The spelling of 1221230335 in words is "one billion, two hundred twenty-one million, two hundred thirty thousand, three hundred thirty-five".