1220110120212 has 12 divisors (see below), whose sum is σ = 2846923613856. Its totient is φ = 406703373400.

The previous prime is 1220110120183. The next prime is 1220110120213. The reversal of 1220110120212 is 2120210110221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1220110120191 and 1220110120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220110120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50837921664 + ... + 50837921687.

It is an arithmetic number, because the mean of its divisors is an integer number (237243634488).

Almost surely, 2^{1220110120212} is an apocalyptic number.

1220110120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220110120212 is an abundant number, since it is smaller than the sum of its proper divisors (1626813493644).

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

1220110120212 is a wasteful number, since it uses less digits than its factorization.

1220110120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101675843358 (or 101675843356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220110120212 its reverse (2120210110221), we get a palindrome (3340320230433).

Subtracting 1220110120212 from its reverse (2120210110221), we obtain a palindrome (900099990009).

The spelling of 1220110120212 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred twenty thousand, two hundred twelve".