21010102121059 has 2 divisors, whose sum is σ = 21010102121060. Its totient is φ = 21010102121058.

The previous prime is 21010102121017. The next prime is 21010102121123. The reversal of 21010102121059 is 95012120101012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21010102121059 - 2⁴¹ = 18811078865507 is a prime.

It is a super-2 number, since 2×21010102121059² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21010102121759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505051060529 + 10505051060530.

It is an arithmetic number, because the mean of its divisors is an integer number (10505051060530).

Almost surely, 2^{21010102121059} is an apocalyptic number.

21010102121059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010102121059 is an equidigital number, since it uses as much as digits as its factorization.

21010102121059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 21010102121059 in words is "twenty-one trillion, ten billion, one hundred two million, one hundred twenty-one thousand, fifty-nine".