20211202049 has 2 divisors, whose sum is σ = 20211202050. Its totient is φ = 20211202048.

The previous prime is 20211202003. The next prime is 20211202057. The reversal of 20211202049 is 94020211202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12596021824 + 7615180225 = 112232^2 + 87265^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211202049 - 2⁸ = 20211201793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211202549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105601024 + 10105601025.

It is an arithmetic number, because the mean of its divisors is an integer number (10105601025).

Almost surely, 2^20211202049 is an apocalyptic number.

It is an amenable number.

20211202049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211202049 is an equidigital number, since it uses as much as digits as its factorization.

20211202049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20211202049 in words is "twenty billion, two hundred eleven million, two hundred two thousand, forty-nine".