420311222133242 has 64 divisors (see below), whose sum is σ = 725780769436800. Its totient is φ = 180834260812800.

The previous prime is 420311222133217. The next prime is 420311222133293. The reversal of 420311222133242 is 242331222113024.

It is a happy number.

It is a super-2 number, since 2×420311222133242² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420311222133199 and 420311222133208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30585563 + ... + 42143790.

It is an arithmetic number, because the mean of its divisors is an integer number (11340324522450).

Almost surely, 2^{420311222133242} is an apocalyptic number.

420311222133242 is a deficient number, since it is larger than the sum of its proper divisors (305469547303558).

420311222133242 is a wasteful number, since it uses less digits than its factorization.

420311222133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72729599.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 420311222133242 its reverse (242331222113024), we get a palindrome (662642444246266).

The spelling of 420311222133242 in words is "four hundred twenty trillion, three hundred eleven billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred forty-two".