101221131310 has 32 divisors (see below), whose sum is σ = 196227360000. Its totient is φ = 37371272448.

The previous prime is 101221131307. The next prime is 101221131329. The reversal of 101221131310 is 13131122101.

It is a happy number.

It is a super-2 number, since 2×101221131310² (a number of 23 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 15 ways as a sum of consecutive naturals, for example, 3397539 + ... + 3427201.

It is an arithmetic number, because the mean of its divisors is an integer number (6132105000).

Almost surely, 2^101221131310 is an apocalyptic number.

101221131310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221131310 is a deficient number, since it is larger than the sum of its proper divisors (95006228690).

101221131310 is a wasteful number, since it uses less digits than its factorization.

101221131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55932.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101221131310 its reverse (13131122101), we get a palindrome (114352253411).

The spelling of 101221131310 in words is "one hundred one billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred ten".