2201122990061 has 2 divisors, whose sum is σ = 2201122990062. Its totient is φ = 2201122990060.

The previous prime is 2201122990007. The next prime is 2201122990093. The reversal of 2201122990061 is 1600992211022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2129646967561 + 71476022500 = 1459331^2 + 267350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201122990061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201122995061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100561495030 + 1100561495031.

It is an arithmetic number, because the mean of its divisors is an integer number (1100561495031).

Almost surely, 2^{2201122990061} is an apocalyptic number.

It is an amenable number.

2201122990061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201122990061 is an equidigital number, since it uses as much as digits as its factorization.

2201122990061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 2201122990061 in words is "two trillion, two hundred one billion, one hundred twenty-two million, nine hundred ninety thousand, sixty-one".