1020012220120 has 16 divisors (see below), whose sum is σ = 2295027495360. Its totient is φ = 408004888032.

The previous prime is 1020012220099. The next prime is 1020012220121. The reversal of 1020012220120 is 210222100201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020012220120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12750152712 + ... + 12750152791.

It is an arithmetic number, because the mean of its divisors is an integer number (143439218460).

Almost surely, 2^{1020012220120} is an apocalyptic number.

1020012220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020012220120 is an abundant number, since it is smaller than the sum of its proper divisors (1275015275240).

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

1020012220120 is a wasteful number, since it uses less digits than its factorization.

1020012220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25500305514 (or 25500305510 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020012220120 its reverse (210222100201), we get a palindrome (1230234320321).

The spelling of 1020012220120 in words is "one trillion, twenty billion, twelve million, two hundred twenty thousand, one hundred twenty".