402122121350430 has 32 divisors (see below), whose sum is σ = 1039331021337504. Its totient is φ = 98983906793856.

The previous prime is 402122121350371. The next prime is 402122121350447. The reversal of 402122121350430 is 34053121221204.

It is a happy number.

It is a super-2 number, since 2×402122121350430² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 515541180829 + ... + 515541181608.

It is an arithmetic number, because the mean of its divisors is an integer number (32479094416797).

Almost surely, 2^{402122121350430} is an apocalyptic number.

402122121350430 is an abundant number, since it is smaller than the sum of its proper divisors (637208899987074).

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

402122121350430 is a wasteful number, since it uses less digits than its factorization.

402122121350430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031082362460.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 402122121350430 its reverse (34053121221204), we get a palindrome (436175242571634).

The spelling of 402122121350430 in words is "four hundred two trillion, one hundred twenty-two billion, one hundred twenty-one million, three hundred fifty thousand, four hundred thirty".