1101120211220 has 24 divisors (see below), whose sum is σ = 2312373565824. Its totient is φ = 440444061216.

The previous prime is 1101120211201. The next prime is 1101120211249. The reversal of 1101120211220 is 221120211011.

It is a junction number, because it is equal to n+sod(n) for n = 1101120211195 and 1101120211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3050009 + ... + 3391871.

It is an arithmetic number, because the mean of its divisors is an integer number (96348898576).

Almost surely, 2^{1101120211220} is an apocalyptic number.

1101120211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101120211220 is an abundant number, since it is smaller than the sum of its proper divisors (1211253354604).

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

1101120211220 is a wasteful number, since it uses less digits than its factorization.

1101120211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502919 (or 502917 counting only the distinct ones).

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

Adding to 1101120211220 its reverse (221120211011), we get a palindrome (1322240422231).

The spelling of 1101120211220 in words is "one trillion, one hundred one billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty".