42221453251512 has 64 divisors (see below), whose sum is σ = 109191905971200. Its totient is φ = 13590659013120.

The previous prime is 42221453251507. The next prime is 42221453251517. The reversal of 42221453251512 is 21515235412224.

It is a happy number.

42221453251512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42221453251507) and next prime (42221453251517).

It is a super-2 number, since 2×42221453251512² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221453251517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60411937 + ... + 61106832.

It is an arithmetic number, because the mean of its divisors is an integer number (1706123530800).

Almost surely, 2^{42221453251512} is an apocalyptic number.

It is an amenable number.

42221453251512 is an abundant number, since it is smaller than the sum of its proper divisors (66970452719688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42221453251512 is a wasteful number, since it uses less digits than its factorization.

42221453251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121519276 (or 121519272 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

Adding to 42221453251512 its reverse (21515235412224), we get a palindrome (63736688663736).

The spelling of 42221453251512 in words is "forty-two trillion, two hundred twenty-one billion, four hundred fifty-three million, two hundred fifty-one thousand, five hundred twelve".