202021012011061 has 2 divisors, whose sum is σ = 202021012011062. Its totient is φ = 202021012011060.

The previous prime is 202021012011043. The next prime is 202021012011109. The reversal of 202021012011061 is 160110210120202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178099434252100 + 23921577758961 = 13345390^2 + 4890969^2 .

It is a cyclic number.

It is not a de Polignac number, because 202021012011061 - 2⁷ = 202021012010933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202021012021061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010506005530 + 101010506005531.

It is an arithmetic number, because the mean of its divisors is an integer number (101010506005531).

Almost surely, 2^{202021012011061} is an apocalyptic number.

It is an amenable number.

202021012011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021012011061 is an equidigital number, since it uses as much as digits as its factorization.

202021012011061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 202021012011061 its reverse (160110210120202), we get a palindrome (362131222131263).

The spelling of 202021012011061 in words is "two hundred two trillion, twenty-one billion, twelve million, eleven thousand, sixty-one".