202010021110109 has 2 divisors, whose sum is σ = 202010021110110. Its totient is φ = 202010021110108.

The previous prime is 202010021110103. The next prime is 202010021110141. The reversal of 202010021110109 is 901011120010202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152124546518884 + 49885474591225 = 12333878^2 + 7062965^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010021110109 - 2¹² = 202010021106013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010021110103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005010555054 + 101005010555055.

It is an arithmetic number, because the mean of its divisors is an integer number (101005010555055).

Almost surely, 2^{202010021110109} is an apocalyptic number.

It is an amenable number.

202010021110109 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010021110109 is an equidigital number, since it uses as much as digits as its factorization.

202010021110109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 202010021110109 in words is "two hundred two trillion, ten billion, twenty-one million, one hundred ten thousand, one hundred nine".