21213210303100 has 36 divisors (see below), whose sum is σ = 46061276195200. Its totient is φ = 8480010418560.

The previous prime is 21213210303091. The next prime is 21213210303101. The reversal of 21213210303100 is 130301231212.

It is a super-2 number, since 2×21213210303100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213210303101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65759580 + ... + 66081379.

Almost surely, 2^{21213210303100} is an apocalyptic number.

21213210303100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21213210303100 is an abundant number, since it is smaller than the sum of its proper divisors (24848065892100).

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

21213210303100 is a wasteful number, since it uses less digits than its factorization.

21213210303100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131842582 (or 131842575 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21213210303100 its reverse (130301231212), we get a palindrome (21343511534312).

The spelling of 21213210303100 in words is "twenty-one trillion, two hundred thirteen billion, two hundred ten million, three hundred three thousand, one hundred".