2021200202149 has 2 divisors, whose sum is σ = 2021200202150. Its totient is φ = 2021200202148.

The previous prime is 2021200202141. The next prime is 2021200202173. The reversal of 2021200202149 is 9412020021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2020974992100 + 225210049 = 1421610^2 + 15007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021200202149 - 2³ = 2021200202141 is a prime.

It is a super-3 number, since 3×2021200202149³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021200202141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010600101074 + 1010600101075.

It is an arithmetic number, because the mean of its divisors is an integer number (1010600101075).

Almost surely, 2^{2021200202149} is an apocalyptic number.

It is an amenable number.

2021200202149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021200202149 is an equidigital number, since it uses as much as digits as its factorization.

2021200202149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 2021200202149 in words is "two trillion, twenty-one billion, two hundred million, two hundred two thousand, one hundred forty-nine".