121000000000022 has 64 divisors (see below), whose sum is σ = 216040514921280. Its totient is φ = 50102433638400.

The previous prime is 121000000000007. The next prime is 121000000000057. The reversal of 121000000000022 is 220000000000121.

It is a junction number, because it is equal to n+sod(n) for n = 120999999999919 and 121000000000009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8699468 + ... + 17823600.

It is an arithmetic number, because the mean of its divisors is an integer number (3375633045645).

Almost surely, 2^{121000000000022} is an apocalyptic number.

121000000000022 is a deficient number, since it is larger than the sum of its proper divisors (95040514921258).

121000000000022 is a wasteful number, since it uses less digits than its factorization.

121000000000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9124769.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 121000000000022 its reverse (220000000000121), we get a palindrome (341000000000143).

Subtracting 121000000000022 from its reverse (220000000000121), we obtain a palindrome (99000000000099).

The spelling of 121000000000022 in words is "one hundred twenty-one trillion, twenty-two", and thus it is an aban number.