42221211454520 has 64 divisors (see below), whose sum is σ = 108569403993600. Its totient is φ = 14475767322240.

The previous prime is 42221211454459. The next prime is 42221211454531. The reversal of 42221211454520 is 2545411212224.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85809605 + ... + 86300235.

It is an arithmetic number, because the mean of its divisors is an integer number (1696396937400).

Almost surely, 2^{42221211454520} is an apocalyptic number.

42221211454520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42221211454520 is an abundant number, since it is smaller than the sum of its proper divisors (66348192539080).

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

42221211454520 is a wasteful number, since it uses less digits than its factorization.

42221211454520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797988 (or 797984 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 42221211454520 its reverse (2545411212224), we get a palindrome (44766622666744).

The spelling of 42221211454520 in words is "forty-two trillion, two hundred twenty-one billion, two hundred eleven million, four hundred fifty-four thousand, five hundred twenty".