111221211000102 has 64 divisors (see below), whose sum is σ = 254456230715904. Its totient is φ = 31747952332800.

The previous prime is 111221211000091. The next prime is 111221211000113. The reversal of 111221211000102 is 201000112122111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111221211000091) and next prime (111221211000113).

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, 893445888 + ... + 893570364.

It is an arithmetic number, because the mean of its divisors is an integer number (3975878604936).

Almost surely, 2^{111221211000102} is an apocalyptic number.

111221211000102 is an abundant number, since it is smaller than the sum of its proper divisors (143235019715802).

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

111221211000102 is a wasteful number, since it uses less digits than its factorization.

111221211000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144093.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111221211000102 its reverse (201000112122111), we get a palindrome (312221323122213).

The spelling of 111221211000102 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two", and thus it is an aban number.