2101420321000 has 384 divisors, whose sum is σ = 6720200847360. Its totient is φ = 604602432000.

The previous prime is 2101420320997. The next prime is 2101420321057. The reversal of 2101420321000 is 1230241012.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6857049 + ... + 7156951.

It is an arithmetic number, because the mean of its divisors is an integer number (17500523040).

Almost surely, 2^{2101420321000} is an apocalyptic number.

2101420321000 is a gapful number since it is divisible by the number (20) 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 2101420321000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3360100423680).

2101420321000 is an abundant number, since it is smaller than the sum of its proper divisors (4618780526360).

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

2101420321000 is a wasteful number, since it uses less digits than its factorization.

2101420321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299962 (or 299941 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2101420321000 its reverse (1230241012), we get a palindrome (2102650562012).

The spelling of 2101420321000 in words is "two trillion, one hundred one billion, four hundred twenty million, three hundred twenty-one thousand".