121220211201122 has 24 divisors (see below), whose sum is σ = 199879585657500. Its totient is φ = 55095544326240.

The previous prime is 121220211201101. The next prime is 121220211201127. The reversal of 121220211201122 is 221102112022121.

It can be written as a sum of positive squares in 2 ways, for example, as 114467338521481 + 6752872679641 = 10698941^2 + 2598629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121220211201094 and 121220211201103.

It is not an unprimeable number, because it can be changed into a prime (121220211201127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17752997 + ... + 23613752.

Almost surely, 2^{121220211201122} is an apocalyptic number.

121220211201122 is a deficient number, since it is larger than the sum of its proper divisors (78659374456378).

121220211201122 is a wasteful number, since it uses less digits than its factorization.

121220211201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41378882 (or 41378871 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121220211201122 its reverse (221102112022121), we get a palindrome (342322323223243).

The spelling of 121220211201122 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred eleven million, two hundred one thousand, one hundred twenty-two".