5421221245 has 16 divisors (see below), whose sum is σ = 7107655680. Its totient is φ = 3936715200.

The previous prime is 5421221243. The next prime is 5421221249.

It is a happy number.

5421221245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5421221245 - 2¹ = 5421221243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421221243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38205 + ... + 110914.

It is an arithmetic number, because the mean of its divisors is an integer number (444228480).

Almost surely, 2^5421221245 is an apocalyptic number.

5421221245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5421221245 is a deficient number, since it is larger than the sum of its proper divisors (1686434435).

5421221245 is a wasteful number, since it uses less digits than its factorization.

5421221245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149796.

The product of its digits is 6400, while the sum is 28.

The square root of 5421221245 is about 73628.9429843998. The cubic root of 5421221245 is about 1756.7058351315.

It can be divided in two parts, 54212 and 21245, that added together give a palindrome (75457).

The spelling of 5421221245 in words is "five billion, four hundred twenty-one million, two hundred twenty-one thousand, two hundred forty-five".