111221000020102 has 16 divisors (see below), whose sum is σ = 190669771671552. Its totient is φ = 47664842813640.

The previous prime is 111221000020049. The next prime is 111221000020153. The reversal of 111221000020102 is 201020000122111.

It is a super-2 number, since 2×111221000020102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107805948 + ... + 108832735.

It is an arithmetic number, because the mean of its divisors is an integer number (11916860729472).

Almost surely, 2^{111221000020102} is an apocalyptic number.

111221000020102 is a deficient number, since it is larger than the sum of its proper divisors (79448771651450).

111221000020102 is a wasteful number, since it uses less digits than its factorization.

111221000020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216675363.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111221000020102 its reverse (201020000122111), we get a palindrome (312241000142213).

The spelling of 111221000020102 in words is "one hundred eleven trillion, two hundred twenty-one billion, twenty thousand, one hundred two".