20120201011222 has 64 divisors (see below), whose sum is σ = 34564007995776. Its totient is φ = 8712603694080.

The previous prime is 20120201011213. The next prime is 20120201011237. The reversal of 20120201011222 is 22211010202102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20120201011196 and 20120201011205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122922628 + ... + 123086200.

It is an arithmetic number, because the mean of its divisors is an integer number (540062624934).

Almost surely, 2^{20120201011222} is an apocalyptic number.

20120201011222 is a deficient number, since it is larger than the sum of its proper divisors (14443806984554).

20120201011222 is a wasteful number, since it uses less digits than its factorization.

20120201011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167545.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120201011222 its reverse (22211010202102), we get a palindrome (42331211213324).

The spelling of 20120201011222 in words is "twenty trillion, one hundred twenty billion, two hundred one million, eleven thousand, two hundred twenty-two".