111012001121002 has 4 divisors (see below), whose sum is σ = 166518001681506. Its totient is φ = 55506000560500.

The previous prime is 111012001120967. The next prime is 111012001121009. The reversal of 111012001121002 is 200121100210111.

It is a happy number.

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., 97095975205441 + 13916025915561 = 9853729^2 + 3730419^2 .

It is not an unprimeable number, because it can be changed into a prime (111012001121009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27753000280249 + ... + 27753000280252.

Almost surely, 2^{111012001121002} is an apocalyptic number.

111012001121002 is a deficient number, since it is larger than the sum of its proper divisors (55506000560504).

111012001121002 is an equidigital number, since it uses as much as digits as its factorization.

111012001121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55506000560503.

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

Adding to 111012001121002 its reverse (200121100210111), we get a palindrome (311133101331113).

The spelling of 111012001121002 in words is "one hundred eleven trillion, twelve billion, one million, one hundred twenty-one thousand, two".