4221242311251 has 16 divisors (see below), whose sum is σ = 6450906334464. Its totient is φ = 2405187051744.

The previous prime is 4221242311243. The next prime is 4221242311343. The reversal of 4221242311251 is 1521132421224.

4221242311251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4221242311251 - 2³ = 4221242311243 is a prime.

It is a super-2 number, since 2×4221242311251² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4221242311211) 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, 289634700 + ... + 289649273.

It is an arithmetic number, because the mean of its divisors is an integer number (403181645904).

Almost surely, 2^{4221242311251} is an apocalyptic number.

4221242311251 is a deficient number, since it is larger than the sum of its proper divisors (2229664023213).

4221242311251 is a wasteful number, since it uses less digits than its factorization.

4221242311251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579284330.

The product of its digits is 7680, while the sum is 30.

Adding to 4221242311251 its reverse (1521132421224), we get a palindrome (5742374732475).

The spelling of 4221242311251 in words is "four trillion, two hundred twenty-one billion, two hundred forty-two million, three hundred eleven thousand, two hundred fifty-one".