2042686222061 has 2 divisors, whose sum is σ = 2042686222062. Its totient is φ = 2042686222060.

The previous prime is 2042686221971. The next prime is 2042686222079. The reversal of 2042686222061 is 1602226862402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2042666949961 + 19272100 = 1429219^2 + 4390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042686222061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042686222091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021343111030 + 1021343111031.

It is an arithmetic number, because the mean of its divisors is an integer number (1021343111031).

Almost surely, 2^{2042686222061} is an apocalyptic number.

It is an amenable number.

2042686222061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042686222061 is an equidigital number, since it uses as much as digits as its factorization.

2042686222061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 2042686222061 in words is "two trillion, forty-two billion, six hundred eighty-six million, two hundred twenty-two thousand, sixty-one".