21210002111010 has 16 divisors (see below), whose sum is σ = 50904005066496. Its totient is φ = 5656000562928.

The previous prime is 21210002110993. The next prime is 21210002111033. The reversal of 21210002111010 is 1011120001212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353500035154 + ... + 353500035213.

It is an arithmetic number, because the mean of its divisors is an integer number (3181500316656).

Almost surely, 2^{21210002111010} is an apocalyptic number.

21210002111010 is an abundant number, since it is smaller than the sum of its proper divisors (29694002955486).

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

21210002111010 is a wasteful number, since it uses less digits than its factorization.

21210002111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707000070377.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21210002111010 its reverse (1011120001212), we get a palindrome (22221122112222).

The spelling of 21210002111010 in words is "twenty-one trillion, two hundred ten billion, two million, one hundred eleven thousand, ten".