100021202122069 has 2 divisors, whose sum is σ = 100021202122070. Its totient is φ = 100021202122068.

The previous prime is 100021202121989. The next prime is 100021202122123. The reversal of 100021202122069 is 960221202120001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79450714001169 + 20570488120900 = 8913513^2 + 4535470^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021202122069 - 2²¹ = 100021200024917 is a prime.

It is a super-2 number, since 2×100021202122069² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021202122969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010601061034 + 50010601061035.

It is an arithmetic number, because the mean of its divisors is an integer number (50010601061035).

Almost surely, 2^{100021202122069} is an apocalyptic number.

It is an amenable number.

100021202122069 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021202122069 is an equidigital number, since it uses as much as digits as its factorization.

100021202122069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 100021202122069 in words is "one hundred trillion, twenty-one billion, two hundred two million, one hundred twenty-two thousand, sixty-nine".