420122231511 has 16 divisors (see below), whose sum is σ = 564287132640. Its totient is φ = 278025707520.

The previous prime is 420122231437. The next prime is 420122231533. The reversal of 420122231511 is 115132221024.

It is a happy number.

It is not a de Polignac number, because 420122231511 - 2¹⁷ = 420122100439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420122231911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 520066 + ... + 1053903.

It is an arithmetic number, because the mean of its divisors is an integer number (35267945790).

Almost surely, 2^420122231511 is an apocalyptic number.

420122231511 is a deficient number, since it is larger than the sum of its proper divisors (144164901129).

420122231511 is a wasteful number, since it uses less digits than its factorization.

420122231511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574626.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 420122231511 its reverse (115132221024), we get a palindrome (535254452535).

The spelling of 420122231511 in words is "four hundred twenty billion, one hundred twenty-two million, two hundred thirty-one thousand, five hundred eleven".