111002121100220 has 48 divisors (see below), whose sum is σ = 266726448085440. Its totient is φ = 38011961885184.

The previous prime is 111002121100159. The next prime is 111002121100223. The reversal of 111002121100220 is 22001121200111.

It is a super-2 number, since 2×111002121100220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 111002121100195 and 111002121100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002121100223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478094009 + ... + 478326128.

It is an arithmetic number, because the mean of its divisors is an integer number (5556801001780).

Almost surely, 2^{111002121100220} is an apocalyptic number.

111002121100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111002121100220 is an abundant number, since it is smaller than the sum of its proper divisors (155724326985220).

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

111002121100220 is a wasteful number, since it uses less digits than its factorization.

111002121100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956420982 (or 956420980 counting only the distinct ones).

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

Adding to 111002121100220 its reverse (22001121200111), we get a palindrome (133003242300331).

The spelling of 111002121100220 in words is "one hundred eleven trillion, two billion, one hundred twenty-one million, one hundred thousand, two hundred twenty".