1601521122 has 8 divisors (see below), whose sum is σ = 3203042256. Its totient is φ = 533840372.

The previous prime is 1601521121. The next prime is 1601521151. The reversal of 1601521122 is 2211251061.

It is a sphenic number, since it is the product of 3 distinct primes.

1601521122 is an admirable number.

It is a super-3 number, since 3×1601521122³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601521121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133460088 + ... + 133460099.

It is an arithmetic number, because the mean of its divisors is an integer number (400380282).

Almost surely, 2^1601521122 is an apocalyptic number.

1601521122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1601521122 is a wasteful number, since it uses less digits than its factorization.

1601521122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266920192.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1601521122 is about 40019.0095079826. The cubic root of 1601521122 is about 1169.9776268642.

Adding to 1601521122 its reverse (2211251061), we get a palindrome (3812772183).

The spelling of 1601521122 in words is "one billion, six hundred one million, five hundred twenty-one thousand, one hundred twenty-two".