12220002120001 has 4 divisors (see below), whose sum is σ = 13160002283092. Its totient is φ = 11280001956912.

The previous prime is 12220002119987. The next prime is 12220002120031. The reversal of 12220002120001 is 10002120002221.

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 3484288890625 + 8735713229376 = 1866625^2 + 2955624^2 .

It is not a de Polignac number, because 12220002120001 - 2¹³ = 12220002111809 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: 940000163077 = 12220002120001 / (1 + 2 + 2 + 2 + 0 + 0 + 0 + 2 + 1 + 2 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220002120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470000081526 + ... + 470000081551.

It is an arithmetic number, because the mean of its divisors is an integer number (3290000570773).

Almost surely, 2^{12220002120001} is an apocalyptic number.

It is an amenable number.

12220002120001 is a deficient number, since it is larger than the sum of its proper divisors (940000163091).

12220002120001 is an equidigital number, since it uses as much as digits as its factorization.

12220002120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940000163090.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220002120001 its reverse (10002120002221), we get a palindrome (22222122122222).

The spelling of 12220002120001 in words is "twelve trillion, two hundred twenty billion, two million, one hundred twenty thousand, one".