1002220120061 has 2 divisors, whose sum is σ = 1002220120062. Its totient is φ = 1002220120060.

The previous prime is 1002220120051. The next prime is 1002220120127. The reversal of 1002220120061 is 1600210222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 897547812100 + 104672307961 = 947390^2 + 323531^2 .

It is an emirp because it is prime and its reverse (1600210222001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002220120061 - 2⁶ = 1002220119997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002220120051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501110060030 + 501110060031.

It is an arithmetic number, because the mean of its divisors is an integer number (501110060031).

Almost surely, 2^{1002220120061} is an apocalyptic number.

It is an amenable number.

1002220120061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002220120061 is an equidigital number, since it uses as much as digits as its factorization.

1002220120061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1002220120061 its reverse (1600210222001), we get a palindrome (2602430342062).

The spelling of 1002220120061 in words is "one trillion, two billion, two hundred twenty million, one hundred twenty thousand, sixty-one".