4221251134731 has 12 divisors (see below), whose sum is σ = 6098237516280. Its totient is φ = 2813763684960.

The previous prime is 4221251134679. The next prime is 4221251134741. The reversal of 4221251134731 is 1374311521224.

4221251134731 is a `hidden beast` number, since 42 + 2 + 1 + 2 + 511 + 34 + 73 + 1 = 666.

It is not a de Polignac number, because 4221251134731 - 2¹⁹ = 4221250610443 is a prime.

It is a super-2 number, since 2×4221251134731² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4221251134741) 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, 33578626 + ... + 33704103.

It is an arithmetic number, because the mean of its divisors is an integer number (508186459690).

Almost surely, 2^{4221251134731} is an apocalyptic number.

4221251134731 is a deficient number, since it is larger than the sum of its proper divisors (1876986381549).

4221251134731 is a wasteful number, since it uses less digits than its factorization.

4221251134731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67289706 (or 67289703 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

Adding to 4221251134731 its reverse (1374311521224), we get a palindrome (5595562655955).

The spelling of 4221251134731 in words is "four trillion, two hundred twenty-one billion, two hundred fifty-one million, one hundred thirty-four thousand, seven hundred thirty-one".