210202122112061 has 2 divisors, whose sum is σ = 210202122112062. Its totient is φ = 210202122112060.

The previous prime is 210202122112049. The next prime is 210202122112067. The reversal of 210202122112061 is 160211221202012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123318937268836 + 86883184843225 = 11104906^2 + 9321115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210202122112061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210202122112067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101061056030 + 105101061056031.

It is an arithmetic number, because the mean of its divisors is an integer number (105101061056031).

Almost surely, 2^{210202122112061} is an apocalyptic number.

It is an amenable number.

210202122112061 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202122112061 is an equidigital number, since it uses as much as digits as its factorization.

210202122112061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 210202122112061 its reverse (160211221202012), we get a palindrome (370413343314073).

The spelling of 210202122112061 in words is "two hundred ten trillion, two hundred two billion, one hundred twenty-two million, one hundred twelve thousand, sixty-one".