21212011100002 has 32 divisors (see below), whose sum is σ = 33451434120960. Its totient is φ = 10068599428800.

The previous prime is 21212011099973. The next prime is 21212011100057. The reversal of 21212011100002 is 20000111021212.

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, 6326268 + ... + 9079960.

It is an arithmetic number, because the mean of its divisors is an integer number (1045357316280).

Almost surely, 2^{21212011100002} is an apocalyptic number.

21212011100002 is a deficient number, since it is larger than the sum of its proper divisors (12239423020958).

21212011100002 is a wasteful number, since it uses less digits than its factorization.

21212011100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754978.

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

Adding to 21212011100002 its reverse (20000111021212), we get a palindrome (41212122121214).

The spelling of 21212011100002 in words is "twenty-one trillion, two hundred twelve billion, eleven million, one hundred thousand, two".