1212254250 has 64 divisors (see below), whose sum is σ = 3043602432. Its totient is φ = 321364800.

The previous prime is 1212254231. The next prime is 1212254269. The reversal of 1212254250 is 524522121.

It is an interprime number because it is at equal distance from previous prime (1212254231) and next prime (1212254269).

It is a self number, because there is not a number n which added to its sum of digits gives 1212254250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125079 + ... + 134421.

It is an arithmetic number, because the mean of its divisors is an integer number (47556288).

Almost surely, 2^1212254250 is an apocalyptic number.

1212254250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212254250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521801216).

1212254250 is an abundant number, since it is smaller than the sum of its proper divisors (1831348182).

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

1212254250 is a wasteful number, since it uses less digits than its factorization.

1212254250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9536 (or 9526 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1212254250 is about 34817.4417497897. The cubic root of 1212254250 is about 1066.2635711043.

Adding to 1212254250 its reverse (524522121), we get a palindrome (1736776371).

The spelling of 1212254250 in words is "one billion, two hundred twelve million, two hundred fifty-four thousand, two hundred fifty".