101210000121220 has 96 divisors (see below), whose sum is σ = 222394709376000. Its totient is φ = 38641649625600.

The previous prime is 101210000121211. The next prime is 101210000121233. The reversal of 101210000121220 is 22121000012101.

It is a self number, because there is not a number n which added to its sum of digits gives 101210000121220.

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, 15459405 + ... + 21009835.

It is an arithmetic number, because the mean of its divisors is an integer number (2316611556000).

Almost surely, 2^{101210000121220} is an apocalyptic number.

101210000121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101210000121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111197354688000).

101210000121220 is an abundant number, since it is smaller than the sum of its proper divisors (121184709254780).

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

101210000121220 is a wasteful number, since it uses less digits than its factorization.

101210000121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550829 (or 5550827 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101210000121220 its reverse (22121000012101), we get a palindrome (123331000133321).

The spelling of 101210000121220 in words is "one hundred one trillion, two hundred ten billion, one hundred twenty-one thousand, two hundred twenty".