1011011122220 has 60 divisors (see below), whose sum is σ = 2335421867520. Its totient is φ = 367640301600.

The previous prime is 1011011122193. The next prime is 1011011122249. The reversal of 1011011122220 is 222211101101.

It is a junction number, because it is equal to n+sod(n) for n = 1011011122195 and 1011011122204.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1433516 + ... + 2019155.

It is an arithmetic number, because the mean of its divisors is an integer number (38923697792).

Almost surely, 2^{1011011122220} is an apocalyptic number.

1011011122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011011122220 is an abundant number, since it is smaller than the sum of its proper divisors (1324410745300).

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

1011011122220 is an equidigital number, since it uses as much as digits as its factorization.

1011011122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452724 (or 3452689 counting only the distinct ones).

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

Adding to 1011011122220 its reverse (222211101101), we get a palindrome (1233222223321).

The spelling of 1011011122220 in words is "one trillion, eleven billion, eleven million, one hundred twenty-two thousand, two hundred twenty".