11220122100020 has 96 divisors (see below), whose sum is σ = 24212682472608. Its totient is φ = 4366256873472.

The previous prime is 11220122099983. The next prime is 11220122100101. The reversal of 11220122100020 is 2000122102211.

It can be written as a sum of positive squares in 16 ways, for example, as 4664658287524 + 6555463812496 = 2159782^2 + 2560364^2 .

It is a super-2 number, since 2×11220122100020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220122099968 and 11220122100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31224494 + ... + 31581786.

It is an arithmetic number, because the mean of its divisors is an integer number (252215442423).

Almost surely, 2^{11220122100020} is an apocalyptic number.

11220122100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220122100020 is an abundant number, since it is smaller than the sum of its proper divisors (12992560372588).

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

11220122100020 is a wasteful number, since it uses less digits than its factorization.

11220122100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357669 (or 357667 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11220122100020 its reverse (2000122102211), we get a palindrome (13220244202231).

The spelling of 11220122100020 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, one hundred thousand, twenty".