111212010020002 has 4 divisors (see below), whose sum is σ = 166818015030006. Its totient is φ = 55606005010000.

The previous prime is 111212010019991. The next prime is 111212010020009. The reversal of 111212010020002 is 200020010212111.

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., 100333497588921 + 10878512431081 = 10016661^2 + 3298259^2 .

It is a super-2 number, since 2×111212010020002² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111212010020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803002504999 + ... + 27803002505002.

Almost surely, 2^{111212010020002} is an apocalyptic number.

111212010020002 is a deficient number, since it is larger than the sum of its proper divisors (55606005010004).

111212010020002 is an equidigital number, since it uses as much as digits as its factorization.

111212010020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55606005010003.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111212010020002 its reverse (200020010212111), we get a palindrome (311232020232113).

The spelling of 111212010020002 in words is "one hundred eleven trillion, two hundred twelve billion, ten million, twenty thousand, two".