21101214122141 has 4 divisors (see below), whose sum is σ = 22018658214432. Its totient is φ = 20183770029852.

The previous prime is 21101214122137. The next prime is 21101214122179. The reversal of 21101214122141 is 14122141210112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21101214122141 - 2² = 21101214122137 is a prime.

It is a super-2 number, since 2×21101214122141² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 917444092267 = 21101214122141 / (2 + 1 + 1 + 0 + 1 + 2 + 1 + 4 + 1 + 2 + 2 + 1 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101214124141) 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 3 ways as a sum of consecutive naturals, for example, 458722046111 + ... + 458722046156.

It is an arithmetic number, because the mean of its divisors is an integer number (5504664553608).

Almost surely, 2^{21101214122141} is an apocalyptic number.

It is an amenable number.

21101214122141 is a deficient number, since it is larger than the sum of its proper divisors (917444092291).

21101214122141 is an equidigital number, since it uses as much as digits as its factorization.

21101214122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917444092290.

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 21101214122141 its reverse (14122141210112), we get a palindrome (35223355332253).

The spelling of 21101214122141 in words is "twenty-one trillion, one hundred one billion, two hundred fourteen million, one hundred twenty-two thousand, one hundred forty-one".