401550155122 has 4 divisors (see below), whose sum is σ = 602325232686. Its totient is φ = 200775077560.

The previous prime is 401550155101. The next prime is 401550155173. The reversal of 401550155122 is 221551055104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 318018172761 + 83531982361 = 563931^2 + 289019^2 .

It is a super-2 number, since 2×401550155122² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100387538779 + ... + 100387538782.

Almost surely, 2^401550155122 is an apocalyptic number.

401550155122 is a deficient number, since it is larger than the sum of its proper divisors (200775077564).

401550155122 is a wasteful number, since it uses less digits than its factorization.

401550155122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200775077563.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 401550155122 in words is "four hundred one billion, five hundred fifty million, one hundred fifty-five thousand, one hundred twenty-two".