20110222012 has 12 divisors (see below), whose sum is σ = 37263058560. Its totient is φ = 9463633856.

The previous prime is 20110222007. The next prime is 20110222021. The reversal of 20110222012 is 21022201102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20110221983 and 20110222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147869212 + ... + 147869347.

It is an arithmetic number, because the mean of its divisors is an integer number (3105254880).

Almost surely, 2^20110222012 is an apocalyptic number.

It is an amenable number.

20110222012 is a deficient number, since it is larger than the sum of its proper divisors (17152836548).

20110222012 is a wasteful number, since it uses less digits than its factorization.

20110222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295738580 (or 295738578 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20110222012 its reverse (21022201102), we get a palindrome (41132423114).

The spelling of 20110222012 in words is "twenty billion, one hundred ten million, two hundred twenty-two thousand, twelve".