1212250151 has 8 divisors (see below), whose sum is σ = 1413703200. Its totient is φ = 1039071264.

The previous prime is 1212250139. The next prime is 1212250183. The reversal of 1212250151 is 1510522121.

It is not a de Polignac number, because 1212250151 - 2⁶ = 1212250087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212250051) 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, 1766786 + ... + 1767471.

It is an arithmetic number, because the mean of its divisors is an integer number (176712900).

Almost surely, 2^1212250151 is an apocalyptic number.

1212250151 is a deficient number, since it is larger than the sum of its proper divisors (201453049).

1212250151 is an frugal number, since it uses more digits than its factorization.

1212250151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534278 (or 3534264 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1212250151 is about 34817.3828855645. The cubic root of 1212250151 is about 1066.2623693159.

Adding to 1212250151 its reverse (1510522121), we get a palindrome (2722772272).

The spelling of 1212250151 in words is "one billion, two hundred twelve million, two hundred fifty thousand, one hundred fifty-one".