22011012010961 has 2 divisors, whose sum is σ = 22011012010962. Its totient is φ = 22011012010960.

The previous prime is 22011012010937. The next prime is 22011012011039. The reversal of 22011012010961 is 16901021011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19669499970961 + 2341512040000 = 4435031^2 + 1530200^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011012010961 - 2¹⁰ = 22011012009937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22011012010961.

It is not a weakly prime, because it can be changed into another prime (22011012010931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005506005480 + 11005506005481.

It is an arithmetic number, because the mean of its divisors is an integer number (11005506005481).

Almost surely, 2^{22011012010961} is an apocalyptic number.

It is an amenable number.

22011012010961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011012010961 is an equidigital number, since it uses as much as digits as its factorization.

22011012010961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

Adding to 22011012010961 its reverse (16901021011022), we get a palindrome (38912033021983).

The spelling of 22011012010961 in words is "twenty-two trillion, eleven billion, twelve million, ten thousand, nine hundred sixty-one".