111011200221020 has 96 divisors (see below), whose sum is σ = 255474238795776. Its totient is φ = 40183976332800.

The previous prime is 111011200220993. The next prime is 111011200221037. The reversal of 111011200221020 is 20122002110111.

It is a super-2 number, since 2×111011200221020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111011200220986 and 111011200221004.

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, 815848832 + ... + 815984888.

It is an arithmetic number, because the mean of its divisors is an integer number (2661189987456).

Almost surely, 2^{111011200221020} is an apocalyptic number.

111011200221020 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 111011200221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127737119397888).

111011200221020 is an abundant number, since it is smaller than the sum of its proper divisors (144463038574756).

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

111011200221020 is a wasteful number, since it uses less digits than its factorization.

111011200221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152931 (or 152929 counting only the distinct ones).

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

Adding to 111011200221020 its reverse (20122002110111), we get a palindrome (131133202331131).

The spelling of 111011200221020 in words is "one hundred eleven trillion, eleven billion, two hundred million, two hundred twenty-one thousand, twenty".