121012022111111 has 8 divisors (see below), whose sum is σ = 125185062241200. Its totient is φ = 116838996099840.

The previous prime is 121012022111107. The next prime is 121012022111119. The reversal of 121012022111111 is 111111220210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121012022111111 - 2² = 121012022111107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012022111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012022111119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15679796 + ... + 22088006.

It is an arithmetic number, because the mean of its divisors is an integer number (15648132780150).

Almost surely, 2^{121012022111111} is an apocalyptic number.

121012022111111 is a deficient number, since it is larger than the sum of its proper divisors (4173040130089).

121012022111111 is an equidigital number, since it uses as much as digits as its factorization.

121012022111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059409.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121012022111111 its reverse (111111220210121), we get a palindrome (232123242321232).

The spelling of 121012022111111 in words is "one hundred twenty-one trillion, twelve billion, twenty-two million, one hundred eleven thousand, one hundred eleven".