121122100122136 has 8 divisors (see below), whose sum is σ = 227103937729020. Its totient is φ = 60561050061064.

The previous prime is 121122100122097. The next prime is 121122100122137. The reversal of 121122100122136 is 631221001221121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×121122100122136² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121122100122136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122100122137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570131257626 + ... + 7570131257641.

Almost surely, 2^{121122100122136} is an apocalyptic number.

It is an amenable number.

121122100122136 is a deficient number, since it is larger than the sum of its proper divisors (105981837606884).

121122100122136 is a wasteful number, since it uses less digits than its factorization.

121122100122136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15140262515273 (or 15140262515269 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 121122100122136 its reverse (631221001221121), we get a palindrome (752343101343257).

The spelling of 121122100122136 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, one hundred twenty-two thousand, one hundred thirty-six".