1221403201414 has 96 divisors (see below), whose sum is σ = 2226221661888. Its totient is φ = 499525171200.

The previous prime is 1221403201411. The next prime is 1221403201439. The reversal of 1221403201414 is 4141023041221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221403201411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289635834 + ... + 289640050.

It is an arithmetic number, because the mean of its divisors is an integer number (23189808978).

Almost surely, 2^{1221403201414} is an apocalyptic number.

1221403201414 is a deficient number, since it is larger than the sum of its proper divisors (1004818460474).

1221403201414 is a wasteful number, since it uses less digits than its factorization.

1221403201414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342 (or 7331 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1221403201414 its reverse (4141023041221), we get a palindrome (5362426242635).

The spelling of 1221403201414 in words is "one trillion, two hundred twenty-one billion, four hundred three million, two hundred one thousand, four hundred fourteen".