10211220120120 has 32 divisors (see below), whose sum is σ = 30633660360720. Its totient is φ = 2722992032000.

The previous prime is 10211220120107. The next prime is 10211220120121. The reversal of 10211220120120 is 2102102211201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10211220120120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211220120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42546750381 + ... + 42546750620.

Almost surely, 2^{10211220120120} is an apocalyptic number.

10211220120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211220120120 is an abundant number, since it is smaller than the sum of its proper divisors (20422440240600).

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

10211220120120 is a wasteful number, since it uses less digits than its factorization.

10211220120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85093501015 (or 85093501011 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10211220120120 its reverse (2102102211201), we get a palindrome (12313322331321).

The spelling of 10211220120120 in words is "ten trillion, two hundred eleven billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty".