122002001011111 has 4 divisors (see below), whose sum is σ = 131386770319672. Its totient is φ = 112617231702552.

The previous prime is 122002001011001. The next prime is 122002001011151. The reversal of 122002001011111 is 111110100200221.

It is a happy number.

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 122002001011111 - 2²⁵ = 122001967456679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9384769308547 = 122002001011111 / (1 + 2 + 2 + 0 + 0 + 2 + 0 + 0 + 1 + 0 + 1 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002001011091 and 122002001011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002001011151) 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, 4692384654261 + ... + 4692384654286.

It is an arithmetic number, because the mean of its divisors is an integer number (32846692579918).

Almost surely, 2^{122002001011111} is an apocalyptic number.

122002001011111 is a deficient number, since it is larger than the sum of its proper divisors (9384769308561).

122002001011111 is an equidigital number, since it uses as much as digits as its factorization.

122002001011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9384769308560.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122002001011111 its reverse (111110100200221), we get a palindrome (233112101211332).

The spelling of 122002001011111 in words is "one hundred twenty-two trillion, two billion, one million, eleven thousand, one hundred eleven".