42251122043331 has 4 divisors (see below), whose sum is σ = 56334829391112. Its totient is φ = 28167414695552.

The previous prime is 42251122043329. The next prime is 42251122043369. The reversal of 42251122043331 is 13334022115224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42251122043331 - 2¹ = 42251122043329 is a prime.

It is a super-2 number, since 2×42251122043331² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42251122043292 and 42251122043301.

It is not an unprimeable number, because it can be changed into a prime (42251122043311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7041853673886 + ... + 7041853673891.

It is an arithmetic number, because the mean of its divisors is an integer number (14083707347778).

Almost surely, 2^{42251122043331} is an apocalyptic number.

42251122043331 is a deficient number, since it is larger than the sum of its proper divisors (14083707347781).

42251122043331 is a wasteful number, since it uses less digits than its factorization.

42251122043331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14083707347780.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 42251122043331 its reverse (13334022115224), we get a palindrome (55585144158555).

The spelling of 42251122043331 in words is "forty-two trillion, two hundred fifty-one billion, one hundred twenty-two million, forty-three thousand, three hundred thirty-one".