220161201612 has 24 divisors (see below), whose sum is σ = 560410331712. Its totient is φ = 66715515600.

The previous prime is 220161201607. The next prime is 220161201629. The reversal of 220161201612 is 216102161022.

It is a super-2 number, since 2×220161201612² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833943814 + ... + 833944077.

It is an arithmetic number, because the mean of its divisors is an integer number (23350430488).

Almost surely, 2^220161201612 is an apocalyptic number.

220161201612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220161201612 is an abundant number, since it is smaller than the sum of its proper divisors (340249130100).

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

220161201612 is a wasteful number, since it uses less digits than its factorization.

220161201612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667887909 (or 1667887907 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 220161201612 its reverse (216102161022), we get a palindrome (436263362634).

The spelling of 220161201612 in words is "two hundred twenty billion, one hundred sixty-one million, two hundred one thousand, six hundred twelve".