111021121102 has 64 divisors (see below), whose sum is σ = 176955383808. Its totient is φ = 52180128000.

The previous prime is 111021121087. The next prime is 111021121181. The reversal of 111021121102 is 201121120111.

It is a happy number.

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, 102134803 + ... + 102135889.

It is an arithmetic number, because the mean of its divisors is an integer number (2764927872).

Almost surely, 2^111021121102 is an apocalyptic number.

111021121102 is a deficient number, since it is larger than the sum of its proper divisors (65934262706).

111021121102 is a wasteful number, since it uses less digits than its factorization.

111021121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111021121102 its reverse (201121120111), we get a palindrome (312142241213).

Subtracting 111021121102 from its reverse (201121120111), we obtain a palindrome (90099999009).

The spelling of 111021121102 in words is "one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, one hundred two".