121111001122061 has 2 divisors, whose sum is σ = 121111001122062. Its totient is φ = 121111001122060.

The previous prime is 121111001122019. The next prime is 121111001122109. The reversal of 121111001122061 is 160221100111121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66235589175625 + 54875411946436 = 8138525^2 + 7407794^2 .

It is a cyclic number.

It is not a de Polignac number, because 121111001122061 - 2⁴² = 116712954610957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121111001125061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555500561030 + 60555500561031.

It is an arithmetic number, because the mean of its divisors is an integer number (60555500561031).

Almost surely, 2^{121111001122061} is an apocalyptic number.

It is an amenable number.

121111001122061 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111001122061 is an equidigital number, since it uses as much as digits as its factorization.

121111001122061 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 20.

Adding to 121111001122061 its reverse (160221100111121), we get a palindrome (281332101233182).

The spelling of 121111001122061 in words is "one hundred twenty-one trillion, one hundred eleven billion, one million, one hundred twenty-two thousand, sixty-one".