111122121002 has 8 divisors (see below), whose sum is σ = 166822902756. Its totient is φ = 55514486752.

The previous prime is 111122120971. The next prime is 111122121013. The reversal of 111122121002 is 200121221111.

It can be written as a sum of positive squares in 2 ways, for example, as 111001582561 + 120538441 = 333169^2 + 10979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23283893 + ... + 23288664.

Almost surely, 2^111122121002 is an apocalyptic number.

111122121002 is a deficient number, since it is larger than the sum of its proper divisors (55700781754).

111122121002 is a wasteful number, since it uses less digits than its factorization.

111122121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46573752.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111122121002 its reverse (200121221111), we get a palindrome (311243342113).

The spelling of 111122121002 in words is "one hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, two".