111211010102002 has 4 divisors (see below), whose sum is σ = 166816515153006. Its totient is φ = 55605505051000.

The previous prime is 111211010101969. The next prime is 111211010102099. The reversal of 111211010102002 is 200201010112111.

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., 97232990341041 + 13978019760961 = 9860679^2 + 3738719^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802752525499 + ... + 27802752525502.

Almost surely, 2^{111211010102002} is an apocalyptic number.

111211010102002 is a deficient number, since it is larger than the sum of its proper divisors (55605505051004).

111211010102002 is an equidigital number, since it uses as much as digits as its factorization.

111211010102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55605505051003.

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

Adding to 111211010102002 its reverse (200201010112111), we get a palindrome (311412020214113).

The spelling of 111211010102002 in words is "one hundred eleven trillion, two hundred eleven billion, ten million, one hundred two thousand, two".