120211112081 has 2 divisors, whose sum is σ = 120211112082. Its totient is φ = 120211112080.

The previous prime is 120211112071. The next prime is 120211112089. The reversal of 120211112081 is 180211112021.

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., 89871046225 + 30340065856 = 299785^2 + 174184^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211112081 - 2¹⁰ = 120211111057 is a prime.

It is a super-2 number, since 2×120211112081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120211112089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105556040 + 60105556041.

It is an arithmetic number, because the mean of its divisors is an integer number (60105556041).

Almost surely, 2^120211112081 is an apocalyptic number.

It is an amenable number.

120211112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

120211112081 is an equidigital number, since it uses as much as digits as its factorization.

120211112081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 120211112081 in words is "one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, eighty-one".