111101101221002 has 4 divisors (see below), whose sum is σ = 166651651831506. Its totient is φ = 55550550610500.

The previous prime is 111101101220959. The next prime is 111101101221037. The reversal of 111101101221002 is 200122101101111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96452807039521 + 14648294181481 = 9821039^2 + 3827309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775275305249 + ... + 27775275305252.

Almost surely, 2^{111101101221002} is an apocalyptic number.

111101101221002 is a deficient number, since it is larger than the sum of its proper divisors (55550550610504).

111101101221002 is an equidigital number, since it uses as much as digits as its factorization.

111101101221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55550550610503.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111101101221002 its reverse (200122101101111), we get a palindrome (311223202322113).

The spelling of 111101101221002 in words is "one hundred eleven trillion, one hundred one billion, one hundred one million, two hundred twenty-one thousand, two".