1244222224421 has 24 divisors (see below), whose sum is σ = 1448370909720. Its totient is φ = 1064349665280.

The previous prime is 1244222224393. The next prime is 1244222224433.

It is a happy number.

1244222224421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 1136119360321 + 108102864100 = 1065889^2 + 328790^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1244222224421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244222224321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10036205 + ... + 10159421.

It is an arithmetic number, because the mean of its divisors is an integer number (60348787905).

Almost surely, 2^{1244222224421} is an apocalyptic number.

1244222224421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1244222224421 is a deficient number, since it is larger than the sum of its proper divisors (204148685299).

1244222224421 is a wasteful number, since it uses less digits than its factorization.

1244222224421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128165 (or 128154 counting only the distinct ones).

The product of its digits is 32768, while the sum is 32.

The spelling of 1244222224421 in words is "one trillion, two hundred forty-four billion, two hundred twenty-two million, two hundred twenty-four thousand, four hundred twenty-one".