121120021122077 has 2 divisors, whose sum is σ = 121120021122078. Its totient is φ = 121120021122076.

The previous prime is 121120021122013. The next prime is 121120021122109. The reversal of 121120021122077 is 770221120021121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89795694171481 + 31324326950596 = 9476059^2 + 5596814^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120021122077 - 2⁶ = 121120021122013 is a prime.

It is a super-2 number, since 2×121120021122077² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121120021124077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560010561038 + 60560010561039.

It is an arithmetic number, because the mean of its divisors is an integer number (60560010561039).

Almost surely, 2^{121120021122077} is an apocalyptic number.

It is an amenable number.

121120021122077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120021122077 is an equidigital number, since it uses as much as digits as its factorization.

121120021122077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 121120021122077 its reverse (770221120021121), we get a palindrome (891341141143198).

The spelling of 121120021122077 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty-one million, one hundred twenty-two thousand, seventy-seven".