1210011112220 has 48 divisors (see below), whose sum is σ = 2698431956640. Its totient is φ = 454472718336.

The previous prime is 1210011112217. The next prime is 1210011112259. The reversal of 1210011112220 is 222111100121.

It is a junction number, because it is equal to n+sod(n) for n = 1210011112195 and 1210011112204.

It is a congruent number.

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, 14046617 + ... + 14132496.

It is an arithmetic number, because the mean of its divisors is an integer number (56217332430).

Almost surely, 2^{1210011112220} is an apocalyptic number.

1210011112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210011112220 is an abundant number, since it is smaller than the sum of its proper divisors (1488420844420).

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

1210011112220 is a wasteful number, since it uses less digits than its factorization.

1210011112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28179254 (or 28179252 counting only the distinct ones).

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

Adding to 1210011112220 its reverse (222111100121), we get a palindrome (1432122212341).

It can be divided in two parts, 1210011 and 112220, that added together give a palindrome (1322231).

The spelling of 1210011112220 in words is "one trillion, two hundred ten billion, eleven million, one hundred twelve thousand, two hundred twenty".