420222435555 has 32 divisors (see below), whose sum is σ = 725184645696. Its totient is φ = 206561862144.

The previous prime is 420222435517. The next prime is 420222435601. The reversal of 420222435555 is 555534222024.

It is not a de Polignac number, because 420222435555 - 2⁷ = 420222435427 is a prime.

It is a super-2 number, since 2×420222435555² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1522732 + ... + 1777401.

It is an arithmetic number, because the mean of its divisors is an integer number (22662020178).

Almost surely, 2^420222435555 is an apocalyptic number.

420222435555 is a deficient number, since it is larger than the sum of its proper divisors (304962210141).

420222435555 is a wasteful number, since it uses less digits than its factorization.

420222435555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300807.

The product of its (nonzero) digits is 480000, while the sum is 39.

Adding to 420222435555 its reverse (555534222024), we get a palindrome (975756657579).

The spelling of 420222435555 in words is "four hundred twenty billion, two hundred twenty-two million, four hundred thirty-five thousand, five hundred fifty-five".