1212233130 has 24 divisors (see below), whose sum is σ = 3151806372. Its totient is φ = 323262144.

The previous prime is 1212233123. The next prime is 1212233131. The reversal of 1212233130 is 313322121.

It can be written as a sum of positive squares in 2 ways, for example, as 1011812481 + 200420649 = 31809^2 + 14157^2 .

It is a super-2 number, since 2×1212233130² = 2939018322939193800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212233131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6734539 + ... + 6734718.

Almost surely, 2^1212233130 is an apocalyptic number.

1212233130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212233130 is an abundant number, since it is smaller than the sum of its proper divisors (1939573242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212233130 is a wasteful number, since it uses less digits than its factorization.

1212233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469270 (or 13469267 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1212233130 is about 34817.1384522048. The cubic root of 1212233130 is about 1066.2573788892.

Adding to 1212233130 its reverse (313322121), we get a palindrome (1525555251).

The spelling of 1212233130 in words is "one billion, two hundred twelve million, two hundred thirty-three thousand, one hundred thirty".