21211200102010 has 32 divisors (see below), whose sum is σ = 39002706772992. Its totient is φ = 8301786380160.

The previous prime is 21211200101999. The next prime is 21211200102011. The reversal of 21211200102010 is 1020100211212.

It is a super-3 number, since 3×21211200102010³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21211200102011) 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, 4105651 + ... + 7699270.

It is an arithmetic number, because the mean of its divisors is an integer number (1218834586656).

Almost surely, 2^{21211200102010} is an apocalyptic number.

21211200102010 is a deficient number, since it is larger than the sum of its proper divisors (17791506670982).

21211200102010 is a wasteful number, since it uses less digits than its factorization.

21211200102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11808798.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21211200102010 its reverse (1020100211212), we get a palindrome (22231300313222).

The spelling of 21211200102010 in words is "twenty-one trillion, two hundred eleven billion, two hundred million, one hundred two thousand, ten".