111020210102220 has 48 divisors (see below), whose sum is σ = 310950418178400. Its totient is φ = 29596453180416.

The previous prime is 111020210102183. The next prime is 111020210102257. The reversal of 111020210102220 is 22201012020111.

It is an interprime number because it is at equal distance from previous prime (111020210102183) and next prime (111020210102257).

It is a super-2 number, since 2×111020210102220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111020210102220.

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, 279055195 + ... + 279452754.

It is an arithmetic number, because the mean of its divisors is an integer number (6478133712050).

Almost surely, 2^{111020210102220} is an apocalyptic number.

111020210102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020210102220 is an abundant number, since it is smaller than the sum of its proper divisors (199930208076180).

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

111020210102220 is a wasteful number, since it uses less digits than its factorization.

111020210102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558511274 (or 558511272 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111020210102220 its reverse (22201012020111), we get a palindrome (133221222122331).

The spelling of 111020210102220 in words is "one hundred eleven trillion, twenty billion, two hundred ten million, one hundred two thousand, two hundred twenty".