21322301002002 has 256 divisors, whose sum is σ = 64972589875200. Its totient is φ = 5003468340480.

The previous prime is 21322301001997. The next prime is 21322301002021. The reversal of 21322301002002 is 20020010322312.

21322301002002 is a `hidden beast` number, since 2 + 132 + 230 + 100 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1655877 + ... + 6736952.

It is an arithmetic number, because the mean of its divisors is an integer number (253799179200).

Almost surely, 2^{21322301002002} is an apocalyptic number.

21322301002002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21322301002002 is an abundant number, since it is smaller than the sum of its proper divisors (43650288873198).

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

21322301002002 is a wasteful number, since it uses less digits than its factorization.

21322301002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392918 (or 8392912 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21322301002002 its reverse (20020010322312), we get a palindrome (41342311324314).

The spelling of 21322301002002 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred one million, two thousand, two".