101120010221161 has 2 divisors, whose sum is σ = 101120010221162. Its totient is φ = 101120010221160.

The previous prime is 101120010221101. The next prime is 101120010221267. The reversal of 101120010221161 is 161122010021101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87570573147225 + 13549437073936 = 9357915^2 + 3680956^2 .

It is an emirp because it is prime and its reverse (161122010021101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101120010221161 - 2¹¹ = 101120010219113 is a prime.

It is a super-2 number, since 2×101120010221161² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101120010221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560005110580 + 50560005110581.

It is an arithmetic number, because the mean of its divisors is an integer number (50560005110581).

Almost surely, 2^{101120010221161} is an apocalyptic number.

It is an amenable number.

101120010221161 is a deficient number, since it is larger than the sum of its proper divisors (1).

101120010221161 is an equidigital number, since it uses as much as digits as its factorization.

101120010221161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 101120010221161 its reverse (161122010021101), we get a palindrome (262242020242262).

The spelling of 101120010221161 in words is "one hundred one trillion, one hundred twenty billion, ten million, two hundred twenty-one thousand, one hundred sixty-one".