21211322201310 has 32 divisors (see below), whose sum is σ = 50920965793152. Its totient is φ = 5654820085920.

The previous prime is 21211322201287. The next prime is 21211322201347. The reversal of 21211322201310 is 1310222311212.

It is a super-2 number, since 2×21211322201310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95668744 + ... + 95890203.

It is an arithmetic number, because the mean of its divisors is an integer number (1591280181036).

Almost surely, 2^{21211322201310} is an apocalyptic number.

21211322201310 is an abundant number, since it is smaller than the sum of its proper divisors (29709643591842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21211322201310 is a wasteful number, since it uses less digits than its factorization.

21211322201310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191562648.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21211322201310 its reverse (1310222311212), we get a palindrome (22521544512522).

The spelling of 21211322201310 in words is "twenty-one trillion, two hundred eleven billion, three hundred twenty-two million, two hundred one thousand, three hundred ten".