1212620231 has 8 divisors (see below), whose sum is σ = 1241719200. Its totient is φ = 1183751712.

The previous prime is 1212620219. The next prime is 1212620243. The reversal of 1212620231 is 1320262121.

It is an interprime number because it is at equal distance from previous prime (1212620219) and next prime (1212620243).

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 1212620231 - 2¹⁰ = 1212619207 is a prime.

It is a super-2 number, since 2×1212620231² = 2940895649260986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212625231) 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, 46940 + ... + 68033.

It is an arithmetic number, because the mean of its divisors is an integer number (155214900).

Almost surely, 2^1212620231 is an apocalyptic number.

1212620231 is a deficient number, since it is larger than the sum of its proper divisors (29098969).

1212620231 is a wasteful number, since it uses less digits than its factorization.

1212620231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115225.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1212620231 is about 34822.6970667121. The cubic root of 1212620231 is about 1066.3708623881.

Adding to 1212620231 its reverse (1320262121), we get a palindrome (2532882352).

The spelling of 1212620231 in words is "one billion, two hundred twelve million, six hundred twenty thousand, two hundred thirty-one".