220111121000002 has 4 divisors (see below), whose sum is σ = 330166681500006. Its totient is φ = 110055560500000.

The previous prime is 220111120999997. The next prime is 220111121000009. The reversal of 220111121000002 is 200000121111022.

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., 198317059735081 + 21794061264921 = 14082509^2 + 4668411^2 .

It is not an unprimeable number, because it can be changed into a prime (220111121000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55027780249999 + ... + 55027780250002.

Almost surely, 2^{220111121000002} is an apocalyptic number.

220111121000002 is a deficient number, since it is larger than the sum of its proper divisors (110055560500004).

220111121000002 is a wasteful number, since it uses less digits than its factorization.

220111121000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110055560500003.

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

Adding to 220111121000002 its reverse (200000121111022), we get a palindrome (420111242111024).

The spelling of 220111121000002 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-one million, two", and thus it is an aban number.