1220100110212 has 24 divisors (see below), whose sum is σ = 2144606163840. Its totient is φ = 607360622880.

The previous prime is 1220100110191. The next prime is 1220100110213. The reversal of 1220100110212 is 2120110010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220100110192 and 1220100110201.

It is not an unprimeable number, because it can be changed into a prime (1220100110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311118 + ... + 1592794.

It is an arithmetic number, because the mean of its divisors is an integer number (89358590160).

Almost surely, 2^{1220100110212} is an apocalyptic number.

It is an amenable number.

1220100110212 is a deficient number, since it is larger than the sum of its proper divisors (924506053628).

1220100110212 is a wasteful number, since it uses less digits than its factorization.

1220100110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282731 (or 1282729 counting only the distinct ones).

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

Adding to 1220100110212 its reverse (2120110010221), we get a palindrome (3340210120433).

Subtracting 1220100110212 from its reverse (2120110010221), we obtain a palindrome (900009900009).

The spelling of 1220100110212 in words is "one trillion, two hundred twenty billion, one hundred million, one hundred ten thousand, two hundred twelve".