122101011210001 has 4 divisors (see below), whose sum is σ = 122103906768100. Its totient is φ = 122098115651904.

The previous prime is 122101011209999. The next prime is 122101011210047. The reversal of 122101011210001 is 100012110101221.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58834115715600 + 63266895494401 = 7670340^2 + 7954049^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101011210001 - 2¹ = 122101011209999 is a prime.

It is a super-2 number, since 2×122101011210001² (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 (122101011210701) 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, 1447715796 + ... + 1447800133.

It is an arithmetic number, because the mean of its divisors is an integer number (30525976692025).

Almost surely, 2^{122101011210001} is an apocalyptic number.

It is an amenable number.

122101011210001 is a deficient number, since it is larger than the sum of its proper divisors (2895558099).

122101011210001 is an equidigital number, since it uses as much as digits as its factorization.

122101011210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895558098.

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

Adding to 122101011210001 its reverse (100012110101221), we get a palindrome (222113121311222).

The spelling of 122101011210001 in words is "one hundred twenty-two trillion, one hundred one billion, eleven million, two hundred ten thousand, one".