122002021111 has 2 divisors, whose sum is σ = 122002021112. Its totient is φ = 122002021110.

The previous prime is 122002021081. The next prime is 122002021121. The reversal of 122002021111 is 111120200221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122002021111 - 2¹¹ = 122002019063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122002021091 and 122002021100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001010555 + 61001010556.

It is an arithmetic number, because the mean of its divisors is an integer number (61001010556).

Almost surely, 2^122002021111 is an apocalyptic number.

122002021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002021111 is an equidigital number, since it uses as much as digits as its factorization.

122002021111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122002021111 its reverse (111120200221), we get a palindrome (233122221332).

The spelling of 122002021111 in words is "one hundred twenty-two billion, two million, twenty-one thousand, one hundred eleven".