20202111121102 has 4 divisors (see below), whose sum is σ = 30303166681656. Its totient is φ = 10101055560550.

The previous prime is 20202111121099. The next prime is 20202111121139. The reversal of 20202111121102 is 20112111120202.

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, 5050527780274 + ... + 5050527780277.

It is an arithmetic number, because the mean of its divisors is an integer number (7575791670414).

Almost surely, 2^{20202111121102} is an apocalyptic number.

20202111121102 is a deficient number, since it is larger than the sum of its proper divisors (10101055560554).

20202111121102 is a wasteful number, since it uses less digits than its factorization.

20202111121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101055560553.

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

Adding to 20202111121102 its reverse (20112111120202), we get a palindrome (40314222241304).

The spelling of 20202111121102 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred two".