1220110211012 has 144 divisors (see below), whose sum is σ = 2854866373632. Its totient is φ = 450283014720.

The previous prime is 1220110210987. The next prime is 1220110211039. The reversal of 1220110211012 is 2101120110221.

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 47 ways as a sum of consecutive naturals, for example, 4988123 + ... + 5227005.

It is an arithmetic number, because the mean of its divisors is an integer number (19825460928).

Almost surely, 2^{1220110211012} 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 1220110211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427433186816).

1220110211012 is an abundant number, since it is smaller than the sum of its proper divisors (1634756162620).

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

1220110211012 is a wasteful number, since it uses less digits than its factorization.

1220110211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239038 (or 239029 counting only the distinct ones).

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

Adding to 1220110211012 its reverse (2101120110221), we get a palindrome (3321230321233).

The spelling of 1220110211012 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred eleven thousand, twelve".