111021212110998 has 64 divisors (see below), whose sum is σ = 255394772974080. Its totient is φ = 31516370825472.

The previous prime is 111021212110981. The next prime is 111021212110999. The reversal of 111021212110998 is 899011212120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021212110999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108641913 + ... + 109659051.

It is an arithmetic number, because the mean of its divisors is an integer number (3990543327720).

Almost surely, 2^{111021212110998} is an apocalyptic number.

111021212110998 is an abundant number, since it is smaller than the sum of its proper divisors (144373560863082).

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

111021212110998 is a wasteful number, since it uses less digits than its factorization.

111021212110998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033861.

The product of its (nonzero) digits is 5184, while the sum is 39.

The spelling of 111021212110998 in words is "one hundred eleven trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, nine hundred ninety-eight".