121020120102122 has 4 divisors (see below), whose sum is σ = 181530180153186. Its totient is φ = 60510060051060.

The previous prime is 121020120102061. The next prime is 121020120102169. The reversal of 121020120102122 is 221201021020121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112495699747201 + 8524420354921 = 10606399^2 + 2919661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121020120102122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30255030025529 + ... + 30255030025532.

Almost surely, 2^{121020120102122} is an apocalyptic number.

121020120102122 is a deficient number, since it is larger than the sum of its proper divisors (60510060051064).

121020120102122 is an equidigital number, since it uses as much as digits as its factorization.

121020120102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60510060051063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121020120102122 its reverse (221201021020121), we get a palindrome (342221141122243).

The spelling of 121020120102122 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty million, one hundred two thousand, one hundred twenty-two".