22001221111102 has 4 divisors (see below), whose sum is σ = 33001831666656. Its totient is φ = 11000610555550.

The previous prime is 22001221111081. The next prime is 22001221111267. The reversal of 22001221111102 is 20111112210022.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500305277774 + ... + 5500305277777.

It is an arithmetic number, because the mean of its divisors is an integer number (8250457916664).

Almost surely, 2^{22001221111102} is an apocalyptic number.

22001221111102 is a deficient number, since it is larger than the sum of its proper divisors (11000610555554).

22001221111102 is a wasteful number, since it uses less digits than its factorization.

22001221111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000610555553.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22001221111102 its reverse (20111112210022), we get a palindrome (42112333321124).

The spelling of 22001221111102 in words is "twenty-two trillion, one billion, two hundred twenty-one million, one hundred eleven thousand, one hundred two".