21202002212110 has 8 divisors (see below), whose sum is σ = 38163603981816. Its totient is φ = 8480800884840.

The previous prime is 21202002212101. The next prime is 21202002212129. The reversal of 21202002212110 is 1121220020212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060100110596 + ... + 1060100110615.

It is an arithmetic number, because the mean of its divisors is an integer number (4770450497727).

Almost surely, 2^{21202002212110} is an apocalyptic number.

21202002212110 is a deficient number, since it is larger than the sum of its proper divisors (16961601769706).

21202002212110 is a wasteful number, since it uses less digits than its factorization.

21202002212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120200221218.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21202002212110 its reverse (1121220020212), we get a palindrome (22323222232322).

The spelling of 21202002212110 in words is "twenty-one trillion, two hundred two billion, two million, two hundred twelve thousand, one hundred ten".