212021101111102 has 4 divisors (see below), whose sum is σ = 318031651666656. Its totient is φ = 106010550555550.

The previous prime is 212021101111097. The next prime is 212021101111129. The reversal of 212021101111102 is 201111101120212.

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, 53005275277774 + ... + 53005275277777.

It is an arithmetic number, because the mean of its divisors is an integer number (79507912916664).

Almost surely, 2^{212021101111102} is an apocalyptic number.

212021101111102 is a deficient number, since it is larger than the sum of its proper divisors (106010550555554).

212021101111102 is a wasteful number, since it uses less digits than its factorization.

212021101111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106010550555553.

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

Adding to 212021101111102 its reverse (201111101120212), we get a palindrome (413132202231314).

The spelling of 212021101111102 in words is "two hundred twelve trillion, twenty-one billion, one hundred one million, one hundred eleven thousand, one hundred two".