10101220200120 has 128 divisors (see below), whose sum is σ = 34657096919040. Its totient is φ = 2307227535360.

The previous prime is 10101220200119. The next prime is 10101220200121. The reversal of 10101220200120 is 2100202210101.

It is an interprime number because it is at equal distance from previous prime (10101220200119) and next prime (10101220200121).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10101220200096 and 10101220200105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101220200121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3030001 + ... + 5420640.

It is an arithmetic number, because the mean of its divisors is an integer number (270758569680).

Almost surely, 2^{10101220200120} is an apocalyptic number.

10101220200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101220200120 is an abundant number, since it is smaller than the sum of its proper divisors (24555876718920).

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

10101220200120 is a wasteful number, since it uses less digits than its factorization.

10101220200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452085 (or 8452081 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10101220200120 its reverse (2100202210101), we get a palindrome (12201422410221).

The spelling of 10101220200120 in words is "ten trillion, one hundred one billion, two hundred twenty million, two hundred thousand, one hundred twenty".