21874935101 has 2 divisors, whose sum is σ = 21874935102. Its totient is φ = 21874935100.

The previous prime is 21874935029. The next prime is 21874935119. The reversal of 21874935101 is 10153947812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21841884100 + 33051001 = 147790^2 + 5749^2 .

It is a cyclic number.

It is not a de Polignac number, because 21874935101 - 2¹⁴ = 21874918717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21874935001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10937467550 + 10937467551.

It is an arithmetic number, because the mean of its divisors is an integer number (10937467551).

Almost surely, 2^21874935101 is an apocalyptic number.

It is an amenable number.

21874935101 is a deficient number, since it is larger than the sum of its proper divisors (1).

21874935101 is an equidigital number, since it uses as much as digits as its factorization.

21874935101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 21874935101 in words is "twenty-one billion, eight hundred seventy-four million, nine hundred thirty-five thousand, one hundred one".