1214451021254 has 4 divisors (see below), whose sum is σ = 1821676531884. Its totient is φ = 607225510626.

The previous prime is 1214451021253. The next prime is 1214451021263. The reversal of 1214451021254 is 4521201544121.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1214451021254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214451021253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303612755312 + ... + 303612755315.

It is an arithmetic number, because the mean of its divisors is an integer number (455419132971).

Almost surely, 2^{1214451021254} is an apocalyptic number.

1214451021254 is a deficient number, since it is larger than the sum of its proper divisors (607225510630).

1214451021254 is an equidigital number, since it uses as much as digits as its factorization.

1214451021254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607225510629.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 1214451021254 its reverse (4521201544121), we get a palindrome (5735652565375).

The spelling of 1214451021254 in words is "one trillion, two hundred fourteen billion, four hundred fifty-one million, twenty-one thousand, two hundred fifty-four".