1601221214 has 16 divisors (see below), whose sum is σ = 2426593056. Its totient is φ = 792396000.

The previous prime is 1601221169. The next prime is 1601221241. The reversal of 1601221214 is 4121221061.

It is a happy number.

It is a super-4 number, since 4×1601221214⁴ (a number of 38 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74084 + ... + 93224.

It is an arithmetic number, because the mean of its divisors is an integer number (151662066).

Almost surely, 2^1601221214 is an apocalyptic number.

1601221214 is a deficient number, since it is larger than the sum of its proper divisors (825371842).

1601221214 is a wasteful number, since it uses less digits than its factorization.

1601221214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19571.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1601221214 is about 40015.2622632915. The cubic root of 1601221214 is about 1169.9045905592.

Adding to 1601221214 its reverse (4121221061), we get a palindrome (5722442275).

The spelling of 1601221214 in words is "one billion, six hundred one million, two hundred twenty-one thousand, two hundred fourteen".