21230101002 has 32 divisors (see below), whose sum is σ = 46325442240. Its totient is φ = 6432638720.

The previous prime is 21230101001. The next prime is 21230101043. The reversal of 21230101002 is 20010103212.

21230101002 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (21230101001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010824 + ... + 1031612.

It is an arithmetic number, because the mean of its divisors is an integer number (1447670070).

Almost surely, 2^21230101002 is an apocalyptic number.

21230101002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21230101002 is an abundant number, since it is smaller than the sum of its proper divisors (25095341238).

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

21230101002 is a wasteful number, since it uses less digits than its factorization.

21230101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36278.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21230101002 its reverse (20010103212), we get a palindrome (41240204214).

The spelling of 21230101002 in words is "twenty-one billion, two hundred thirty million, one hundred one thousand, two".