21202102001110 has 16 divisors (see below), whose sum is σ = 38164165304400. Its totient is φ = 8480755977696.

The previous prime is 21202102001083. The next prime is 21202102001111. The reversal of 21202102001110 is 1110020120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202102001111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9548025 + ... + 11557204.

It is an arithmetic number, because the mean of its divisors is an integer number (2385260331525).

Almost surely, 2^{21202102001110} is an apocalyptic number.

21202102001110 is a deficient number, since it is larger than the sum of its proper divisors (16962063303290).

21202102001110 is a wasteful number, since it uses less digits than its factorization.

21202102001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21205695.

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

Adding to 21202102001110 its reverse (1110020120212), we get a palindrome (22312122121322).

The spelling of 21202102001110 in words is "twenty-one trillion, two hundred two billion, one hundred two million, one thousand, one hundred ten".