20112221110012 has 6 divisors (see below), whose sum is σ = 35196386942528. Its totient is φ = 10056110555004.

The previous prime is 20112221109973. The next prime is 20112221110067. The reversal of 20112221110012 is 21001112221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514027638748 + ... + 2514027638755.

Almost surely, 2^{20112221110012} is an apocalyptic number.

It is an amenable number.

20112221110012 is a deficient number, since it is larger than the sum of its proper divisors (15084165832516).

20112221110012 is a wasteful number, since it uses less digits than its factorization.

20112221110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028055277507 (or 5028055277505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112221110012 its reverse (21001112221102), we get a palindrome (41113333331114).

The spelling of 20112221110012 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, twelve".