111002100020002 has 4 divisors (see below), whose sum is σ = 166503150030006. Its totient is φ = 55501050010000.

The previous prime is 111002100019969. The next prime is 111002100020087. The reversal of 111002100020002 is 200020001200111.

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., 108408515387481 + 2593584632521 = 10411941^2 + 1610461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750525004999 + ... + 27750525005002.

Almost surely, 2^{111002100020002} is an apocalyptic number.

111002100020002 is a deficient number, since it is larger than the sum of its proper divisors (55501050010004).

111002100020002 is an equidigital number, since it uses as much as digits as its factorization.

111002100020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55501050010003.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111002100020002 its reverse (200020001200111), we get a palindrome (311022101220113).

The spelling of 111002100020002 in words is "one hundred eleven trillion, two billion, one hundred million, twenty thousand, two".