21141210101 has 16 divisors (see below), whose sum is σ = 23417372160. Its totient is φ = 18926177520.

The previous prime is 21141210091. The next prime is 21141210113. The reversal of 21141210101 is 10101214112.

It is a cyclic number.

It is not a de Polignac number, because 21141210101 - 2⁶ = 21141210037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141210131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 150686 + ... + 254928.

It is an arithmetic number, because the mean of its divisors is an integer number (1463585760).

Almost surely, 2^21141210101 is an apocalyptic number.

It is an amenable number.

21141210101 is a deficient number, since it is larger than the sum of its proper divisors (2276162059).

21141210101 is a wasteful number, since it uses less digits than its factorization.

21141210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104536.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21141210101 its reverse (10101214112), we get a palindrome (31242424213).

The spelling of 21141210101 in words is "twenty-one billion, one hundred forty-one million, two hundred ten thousand, one hundred one".