11101222020 has 192 divisors, whose sum is σ = 37686974976. Its totient is φ = 2383503360.

The previous prime is 11101222009. The next prime is 11101222031. The reversal of 11101222020 is 2022210111.

It is an interprime number because it is at equal distance from previous prime (11101222009) and next prime (11101222031).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11101221987 and 11101222005.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4661230 + ... + 4663610.

It is an arithmetic number, because the mean of its divisors is an integer number (196286328).

Almost surely, 2^11101222020 is an apocalyptic number.

11101222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11101222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18843487488).

11101222020 is an abundant number, since it is smaller than the sum of its proper divisors (26585752956).

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

11101222020 is a wasteful number, since it uses less digits than its factorization.

11101222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11101222020 its reverse (2022210111), we get a palindrome (13123432131).

The spelling of 11101222020 in words is "eleven billion, one hundred one million, two hundred twenty-two thousand, twenty".