1020210121120 has 96 divisors (see below), whose sum is σ = 2447774816256. Its totient is φ = 401779123200.

The previous prime is 1020210121081. The next prime is 1020210121201. The reversal of 1020210121120 is 211210120201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020210121120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470290 + ... + 2853550.

It is an arithmetic number, because the mean of its divisors is an integer number (25497654336).

Almost surely, 2^{1020210121120} is an apocalyptic number.

1020210121120 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 1020210121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223887408128).

1020210121120 is an abundant number, since it is smaller than the sum of its proper divisors (1427564695136).

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

1020210121120 is a wasteful number, since it uses less digits than its factorization.

1020210121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383534 (or 383526 counting only the distinct ones).

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

Adding to 1020210121120 its reverse (211210120201), we get a palindrome (1231420241321).

The spelling of 1020210121120 in words is "one trillion, twenty billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty".