11221122101020 has 48 divisors (see below), whose sum is σ = 25418806818048. Its totient is φ = 4136357813760.

The previous prime is 11221122100999. The next prime is 11221122101081. The reversal of 11221122101020 is 2010122112211.

It is a junction number, because it is equal to n+sod(n) for n = 11221122100985 and 11221122101003.

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, 35392561 + ... + 35708200.

It is an arithmetic number, because the mean of its divisors is an integer number (529558475376).

Almost surely, 2^{11221122101020} is an apocalyptic number.

11221122101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221122101020 is an abundant number, since it is smaller than the sum of its proper divisors (14197684717028).

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

11221122101020 is a wasteful number, since it uses less digits than its factorization.

11221122101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71101390 (or 71101388 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11221122101020 its reverse (2010122112211), we get a palindrome (13231244213231).

The spelling of 11221122101020 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred one thousand, twenty".