420222147402 has 32 divisors (see below), whose sum is σ = 882259752960. Its totient is φ = 133257976560.

The previous prime is 420222147377. The next prime is 420222147403. The reversal of 420222147402 is 204741222024.

It is a self number, because there is not a number n which added to its sum of digits gives 420222147402.

It is not an unprimeable number, because it can be changed into a prime (420222147403) 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, 19135288 + ... + 19157235.

It is an arithmetic number, because the mean of its divisors is an integer number (27570617280).

Almost surely, 2^420222147402 is an apocalyptic number.

420222147402 is an abundant number, since it is smaller than the sum of its proper divisors (462037605558).

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

420222147402 is a wasteful number, since it uses less digits than its factorization.

420222147402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38292618.

The product of its (nonzero) digits is 14336, while the sum is 30.

Adding to 420222147402 its reverse (204741222024), we get a palindrome (624963369426).

The spelling of 420222147402 in words is "four hundred twenty billion, two hundred twenty-two million, one hundred forty-seven thousand, four hundred two".