100122122220061 has 2 divisors, whose sum is σ = 100122122220062. Its totient is φ = 100122122220060.

The previous prime is 100122122219963. The next prime is 100122122220091. The reversal of 100122122220061 is 160022221221001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54359197291161 + 45762924928900 = 7372869^2 + 6764830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100122122220061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100122122220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061061110030 + 50061061110031.

It is an arithmetic number, because the mean of its divisors is an integer number (50061061110031).

Almost surely, 2^{100122122220061} is an apocalyptic number.

It is an amenable number.

100122122220061 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122122220061 is an equidigital number, since it uses as much as digits as its factorization.

100122122220061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 100122122220061 its reverse (160022221221001), we get a palindrome (260144343441062).

The spelling of 100122122220061 in words is "one hundred trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, sixty-one".