1254223340218 has 16 divisors (see below), whose sum is σ = 1932867637920. Its totient is φ = 609946158096.

The previous prime is 1254223340207. The next prime is 1254223340261. The reversal of 1254223340218 is 8120433224521.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2797596 + ... + 3214807.

It is an arithmetic number, because the mean of its divisors is an integer number (120804227370).

Almost surely, 2^{1254223340218} is an apocalyptic number.

1254223340218 is a deficient number, since it is larger than the sum of its proper divisors (678644297702).

1254223340218 is a wasteful number, since it uses less digits than its factorization.

1254223340218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015261.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 1254223340218 its reverse (8120433224521), we get a palindrome (9374656564739).

The spelling of 1254223340218 in words is "one trillion, two hundred fifty-four billion, two hundred twenty-three million, three hundred forty thousand, two hundred eighteen".