146222271428 has 24 divisors (see below), whose sum is σ = 270988609752. Its totient is φ = 68798457344.

The previous prime is 146222271421. The next prime is 146222271443. The reversal of 146222271428 is 824172222641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47671482244 + 98550789184 = 218338^2 + 313928^2 .

It is not an unprimeable number, because it can be changed into a prime (146222271421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210326 + ... + 580242.

It is an arithmetic number, because the mean of its divisors is an integer number (11291192073).

Almost surely, 2^146222271428 is an apocalyptic number.

It is an amenable number.

146222271428 is a deficient number, since it is larger than the sum of its proper divisors (124766338324).

146222271428 is a wasteful number, since it uses less digits than its factorization.

146222271428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375751 (or 375749 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The spelling of 146222271428 in words is "one hundred forty-six billion, two hundred twenty-two million, two hundred seventy-one thousand, four hundred twenty-eight".