122111001010001 has 4 divisors (see below), whose sum is σ = 122120458927104. Its totient is φ = 122101543092900.

The previous prime is 122111001009997. The next prime is 122111001010003. The reversal of 122111001010001 is 100010100111221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122111001010001 - 2² = 122111001009997 is a prime.

It is a super-2 number, since 2×122111001010001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122111001010003) 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, 4728939185 + ... + 4728965006.

It is an arithmetic number, because the mean of its divisors is an integer number (30530114731776).

Almost surely, 2^{122111001010001} is an apocalyptic number.

It is an amenable number.

122111001010001 is a deficient number, since it is larger than the sum of its proper divisors (9457917103).

122111001010001 is an equidigital number, since it uses as much as digits as its factorization.

122111001010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457917102.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 122111001010001 its reverse (100010100111221), we get a palindrome (222121101121222).

The spelling of 122111001010001 in words is "one hundred twenty-two trillion, one hundred eleven billion, one million, ten thousand, one".