1206962954221 has 2 divisors, whose sum is σ = 1206962954222. Its totient is φ = 1206962954220.

The previous prime is 1206962954201. The next prime is 1206962954231. The reversal of 1206962954221 is 1224592696021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009795872996 + 197167081225 = 1004886^2 + 444035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206962954221 - 2⁵ = 1206962954189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1206962954201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603481477110 + 603481477111.

It is an arithmetic number, because the mean of its divisors is an integer number (603481477111).

Almost surely, 2^{1206962954221} is an apocalyptic number.

It is an amenable number.

1206962954221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206962954221 is an equidigital number, since it uses as much as digits as its factorization.

1206962954221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 1206962954221 in words is "one trillion, two hundred six billion, nine hundred sixty-two million, nine hundred fifty-four thousand, two hundred twenty-one".