111002012021121 has 16 divisors (see below), whose sum is σ = 161030674594944. Its totient is φ = 67604714694144.

The previous prime is 111002012021101. The next prime is 111002012021129. The reversal of 111002012021121 is 121120210200111.

It is a happy number.

It is not a de Polignac number, because 111002012021121 - 2⁷ = 111002012020993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111002012021121.

It is not an unprimeable number, because it can be changed into a prime (111002012021129) 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, 14671158261 + ... + 14671165826.

It is an arithmetic number, because the mean of its divisors is an integer number (10064417162184).

Almost surely, 2^{111002012021121} is an apocalyptic number.

It is an amenable number.

111002012021121 is a deficient number, since it is larger than the sum of its proper divisors (50028662573823).

111002012021121 is a wasteful number, since it uses less digits than its factorization.

111002012021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29342324200.

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

Adding to 111002012021121 its reverse (121120210200111), we get a palindrome (232122222221232).

The spelling of 111002012021121 in words is "one hundred eleven trillion, two billion, twelve million, twenty-one thousand, one hundred twenty-one".