101221121120 has 48 divisors (see below), whose sum is σ = 273297030048. Its totient is φ = 34704384000.

The previous prime is 101221121087. The next prime is 101221121143. The reversal of 101221121120 is 21121122101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 101221121095 and 101221121104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45186881 + ... + 45189120.

It is an arithmetic number, because the mean of its divisors is an integer number (5693688126).

Almost surely, 2^101221121120 is an apocalyptic number.

101221121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221121120 is an abundant number, since it is smaller than the sum of its proper divisors (172075908928).

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

101221121120 is an equidigital number, since it uses as much as digits as its factorization.

101221121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90376023 (or 90376015 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101221121120 its reverse (21121122101), we get a palindrome (122342243221).

The spelling of 101221121120 in words is "one hundred one billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty".