20012222212012 has 48 divisors (see below), whose sum is σ = 35846794720800. Its totient is φ = 9773835282432.

The previous prime is 20012222212001. The next prime is 20012222212039. The reversal of 20012222212012 is 21021222221002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7974063 + ... + 10178905.

It is an arithmetic number, because the mean of its divisors is an integer number (746808223350).

Almost surely, 2^{20012222212012} is an apocalyptic number.

It is an amenable number.

20012222212012 is a deficient number, since it is larger than the sum of its proper divisors (15834572508788).

20012222212012 is a wasteful number, since it uses less digits than its factorization.

20012222212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205250 (or 2205248 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20012222212012 its reverse (21021222221002), we get a palindrome (41033444433014).

The spelling of 20012222212012 in words is "twenty trillion, twelve billion, two hundred twenty-two million, two hundred twelve thousand, twelve".