2111121221102 has 4 divisors (see below), whose sum is σ = 3166681831656. Its totient is φ = 1055560610550.

The previous prime is 2111121221101. The next prime is 2111121221141. The reversal of 2111121221102 is 2011221211112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527780305274 + ... + 527780305277.

It is an arithmetic number, because the mean of its divisors is an integer number (791670457914).

Almost surely, 2^{2111121221102} is an apocalyptic number.

2111121221102 is a deficient number, since it is larger than the sum of its proper divisors (1055560610554).

2111121221102 is a wasteful number, since it uses less digits than its factorization.

2111121221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055560610553.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111121221102 its reverse (2011221211112), we get a palindrome (4122342432214).

The spelling of 2111121221102 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred two".