122021012101111 has 64 divisors (see below), whose sum is σ = 137083652923392. Its totient is φ = 108087598080000.

The previous prime is 122021012101099. The next prime is 122021012101117. The reversal of 122021012101111 is 111101210120221.

It is a cyclic number.

It is not a de Polignac number, because 122021012101111 - 2²⁷ = 122020877883383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021012101117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2052779151 + ... + 2052838591.

It is an arithmetic number, because the mean of its divisors is an integer number (2141932076928).

Almost surely, 2^{122021012101111} is an apocalyptic number.

122021012101111 is a deficient number, since it is larger than the sum of its proper divisors (15062640822281).

122021012101111 is a wasteful number, since it uses less digits than its factorization.

122021012101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60304.

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

Adding to 122021012101111 its reverse (111101210120221), we get a palindrome (233122222221332).

The spelling of 122021012101111 in words is "one hundred twenty-two trillion, twenty-one billion, twelve million, one hundred one thousand, one hundred eleven".