1220000101110 has 256 divisors, whose sum is σ = 3977402849280. Its totient is φ = 259747430400.

The previous prime is 1220000101097. The next prime is 1220000101121. The reversal of 1220000101110 is 111010000221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1220000101092 and 1220000101101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2920885 + ... + 3312335.

It is an arithmetic number, because the mean of its divisors is an integer number (15536729880).

Almost surely, 2^{1220000101110} is an apocalyptic number.

1220000101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220000101110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988701424640).

1220000101110 is an abundant number, since it is smaller than the sum of its proper divisors (2757402748170).

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

1220000101110 is a wasteful number, since it uses less digits than its factorization.

1220000101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391588 (or 391582 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1220000101110 its reverse (111010000221), we get a palindrome (1331010101331).

The spelling of 1220000101110 in words is "one trillion, two hundred twenty billion, one hundred one thousand, one hundred ten".