154401221322 has 12 divisors (see below), whose sum is σ = 334535979570. Its totient is φ = 51467073768.

The previous prime is 154401221309. The next prime is 154401221333. The reversal of 154401221322 is 223122104451.

154401221322 is a `hidden beast` number, since 1 + 5 + 4 + 401 + 221 + 32 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 93777425361 + 60623795961 = 306231^2 + 246219^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4288922797 + ... + 4288922832.

Almost surely, 2^154401221322 is an apocalyptic number.

154401221322 is an abundant number, since it is smaller than the sum of its proper divisors (180134758248).

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

154401221322 is a wasteful number, since it uses less digits than its factorization.

154401221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577845637 (or 8577845634 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 154401221322 its reverse (223122104451), we get a palindrome (377523325773).

The spelling of 154401221322 in words is "one hundred fifty-four billion, four hundred one million, two hundred twenty-one thousand, three hundred twenty-two".