10021212020120 has 128 divisors (see below), whose sum is σ = 26898109655040. Its totient is φ = 3285372456960.

The previous prime is 10021212020117. The next prime is 10021212020123. The reversal of 10021212020120 is 2102021212001.

10021212020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10021212020117) and next prime (10021212020123).

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 = 10021212020095 and 10021212020104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021212020123) 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, 19328189 + ... + 19839891.

It is an arithmetic number, because the mean of its divisors is an integer number (210141481680).

Almost surely, 2^{10021212020120} is an apocalyptic number.

10021212020120 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 10021212020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13449054827520).

10021212020120 is an abundant number, since it is smaller than the sum of its proper divisors (16876897634920).

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

10021212020120 is a wasteful number, since it uses less digits than its factorization.

10021212020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514785 (or 514781 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021212020120 its reverse (2102021212001), we get a palindrome (12123233232121).

The spelling of 10021212020120 in words is "ten trillion, twenty-one billion, two hundred twelve million, twenty thousand, one hundred twenty".