21032021202000 has 160 divisors (see below), whose sum is σ = 67850928512640. Its totient is φ = 5604925081600.

The previous prime is 21032021201963. The next prime is 21032021202037. The reversal of 21032021202000 is 20212023012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21032021201963) and next prime (21032021202037).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8189431 + ... + 10446569.

It is an arithmetic number, because the mean of its divisors is an integer number (424068303204).

Almost surely, 2^{21032021202000} is an apocalyptic number.

21032021202000 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 21032021202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33925464256320).

21032021202000 is an abundant number, since it is smaller than the sum of its proper divisors (46818907310640).

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

21032021202000 is a wasteful number, since it uses less digits than its factorization.

21032021202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258718 (or 2258702 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21032021202000 its reverse (20212023012), we get a palindrome (21052233225012).

The spelling of 21032021202000 in words is "twenty-one trillion, thirty-two billion, twenty-one million, two hundred two thousand".