21211401330002 has 32 divisors (see below), whose sum is σ = 34956472486320. Its totient is φ = 9592671928320.

The previous prime is 21211401329969. The next prime is 21211401330023. The reversal of 21211401330002 is 20003310411212.

It can be written as a sum of positive squares in 8 ways, for example, as 7545300290641 + 13666101039361 = 2746871^2 + 3696769^2 .

It is a super-2 number, since 2×21211401330002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8948699 + ... + 11068062.

Almost surely, 2^{21211401330002} is an apocalyptic number.

21211401330002 is a deficient number, since it is larger than the sum of its proper divisors (13745071156318).

21211401330002 is a wasteful number, since it uses less digits than its factorization.

21211401330002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017598.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21211401330002 its reverse (20003310411212), we get a palindrome (41214711741214).

The spelling of 21211401330002 in words is "twenty-one trillion, two hundred eleven billion, four hundred one million, three hundred thirty thousand, two".