1220110110212 has 48 divisors (see below), whose sum is σ = 2521715847168. Its totient is φ = 505478201760.

The previous prime is 1220110110173. The next prime is 1220110110227. The reversal of 1220110110212 is 2120110110221.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 12383 + ... + 1562169.

It is an arithmetic number, because the mean of its divisors is an integer number (52535746816).

Almost surely, 2^{1220110110212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220110110212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260857923584).

1220110110212 is an abundant number, since it is smaller than the sum of its proper divisors (1301605736956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220110110212 is a wasteful number, since it uses less digits than its factorization.

1220110110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550736 (or 1550734 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220110110212 its reverse (2120110110221), we get a palindrome (3340220220433).

Subtracting 1220110110212 from its reverse (2120110110221), we obtain a palindrome (900000000009).

The spelling of 1220110110212 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred ten thousand, two hundred twelve".