1221461141463 has 12 divisors (see below), whose sum is σ = 1764360516360. Its totient is φ = 814294616976.

The previous prime is 1221461141389. The next prime is 1221461141491. The reversal of 1221461141463 is 3641411641221.

1221461141463 is a `hidden beast` number, since 1 + 2 + 2 + 146 + 11 + 41 + 463 = 666.

It is not a de Polignac number, because 1221461141463 - 2⁹ = 1221461140951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221461141863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444556 + ... + 1624977.

It is an arithmetic number, because the mean of its divisors is an integer number (147030043030).

Almost surely, 2^{1221461141463} is an apocalyptic number.

1221461141463 is a deficient number, since it is larger than the sum of its proper divisors (542899374897).

1221461141463 is a wasteful number, since it uses less digits than its factorization.

1221461141463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135118 (or 2135115 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

Adding to 1221461141463 its reverse (3641411641221), we get a palindrome (4862872782684).

The spelling of 1221461141463 in words is "one trillion, two hundred twenty-one billion, four hundred sixty-one million, one hundred forty-one thousand, four hundred sixty-three".