122001020020111 has 4 divisors (see below), whose sum is σ = 122060853774000. Its totient is φ = 121941186266224.

The previous prime is 122001020020097. The next prime is 122001020020163. The reversal of 122001020020111 is 111020020100221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122001020020111 - 2¹¹ = 122001020018063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001020020091 and 122001020020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001020020171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29916873886 + ... + 29916877963.

It is an arithmetic number, because the mean of its divisors is an integer number (30515213443500).

Almost surely, 2^{122001020020111} is an apocalyptic number.

122001020020111 is a deficient number, since it is larger than the sum of its proper divisors (59833753889).

122001020020111 is an equidigital number, since it uses as much as digits as its factorization.

122001020020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59833753888.

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

Adding to 122001020020111 its reverse (111020020100221), we get a palindrome (233021040120332).

The spelling of 122001020020111 in words is "one hundred twenty-two trillion, one billion, twenty million, twenty thousand, one hundred eleven".