121122100022005 has 64 divisors (see below), whose sum is σ = 153458737920000. Its totient is φ = 91664666247168.

The previous prime is 121122100021987. The next prime is 121122100022023. The reversal of 121122100022005 is 500220001221121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121122100021987) and next prime (121122100022023).

It is a cyclic number.

It is not a de Polignac number, because 121122100022005 - 2¹³ = 121122100013813 is a prime.

It is a super-2 number, since 2×121122100022005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 893960856 + ... + 894096334.

It is an arithmetic number, because the mean of its divisors is an integer number (2397792780000).

Almost surely, 2^{121122100022005} is an apocalyptic number.

It is an amenable number.

121122100022005 is a deficient number, since it is larger than the sum of its proper divisors (32336637897995).

121122100022005 is a wasteful number, since it uses less digits than its factorization.

121122100022005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136246.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 121122100022005 its reverse (500220001221121), we get a palindrome (621342101243126).

The spelling of 121122100022005 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, twenty-two thousand, five".