1222101100012 has 12 divisors (see below), whose sum is σ = 2303190534736. Its totient is φ = 564046661520.

The previous prime is 1222101100001. The next prime is 1222101100021. The reversal of 1222101100012 is 2100011012221.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1222101099965 and 1222101100001.

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, 11750972064 + ... + 11750972167.

Almost surely, 2^{1222101100012} is an apocalyptic number.

It is an amenable number.

1222101100012 is a deficient number, since it is larger than the sum of its proper divisors (1081089434724).

1222101100012 is a wasteful number, since it uses less digits than its factorization.

1222101100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23501944248 (or 23501944246 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222101100012 its reverse (2100011012221), we get a palindrome (3322112112233).

The spelling of 1222101100012 in words is "one trillion, two hundred twenty-two billion, one hundred one million, one hundred thousand, twelve".