121111022202143 has 2 divisors, whose sum is σ = 121111022202144. Its totient is φ = 121111022202142.

The previous prime is 121111022202061. The next prime is 121111022202167. The reversal of 121111022202143 is 341202220111121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121111022202143 - 2¹⁴ = 121111022185759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121111022202343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555511101071 + 60555511101072.

It is an arithmetic number, because the mean of its divisors is an integer number (60555511101072).

Almost surely, 2^{121111022202143} is an apocalyptic number.

121111022202143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111022202143 is an equidigital number, since it uses as much as digits as its factorization.

121111022202143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 121111022202143 its reverse (341202220111121), we get a palindrome (462313242313264).

The spelling of 121111022202143 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-two million, two hundred two thousand, one hundred forty-three".