21202011310 has 64 divisors (see below), whose sum is σ = 39614515200. Its totient is φ = 8166292992.

The previous prime is 21202011287. The next prime is 21202011343. The reversal of 21202011310 is 1311020212.

It is a super-2 number, since 2×21202011310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5449846 + ... + 5453734.

It is an arithmetic number, because the mean of its divisors is an integer number (618976800).

Almost surely, 2^21202011310 is an apocalyptic number.

21202011310 is a deficient number, since it is larger than the sum of its proper divisors (18412503890).

21202011310 is a wasteful number, since it uses less digits than its factorization.

21202011310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21202011310 its reverse (1311020212), we get a palindrome (22513031522).

The spelling of 21202011310 in words is "twenty-one billion, two hundred two million, eleven thousand, three hundred ten".