121012211102122 has 4 divisors (see below), whose sum is σ = 181518316653186. Its totient is φ = 60506105551060.

The previous prime is 121012211102093. The next prime is 121012211102179. The reversal of 121012211102122 is 221201112210121.

It is a happy number.

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., 117346284357201 + 3665926744921 = 10832649^2 + 1914661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121012211102122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30253052775529 + ... + 30253052775532.

Almost surely, 2^{121012211102122} is an apocalyptic number.

121012211102122 is a deficient number, since it is larger than the sum of its proper divisors (60506105551064).

121012211102122 is an equidigital number, since it uses as much as digits as its factorization.

121012211102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60506105551063.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012211102122 its reverse (221201112210121), we get a palindrome (342213323312243).

The spelling of 121012211102122 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, one hundred two thousand, one hundred twenty-two".