69121222001 has 4 divisors (see below), whose sum is σ = 74438239092. Its totient is φ = 63804204912.

The previous prime is 69121221973. The next prime is 69121222019. The reversal of 69121222001 is 10022212196.

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 11016601600 + 58104620401 = 104960^2 + 241049^2 .

It is a cyclic number.

It is not a de Polignac number, because 69121222001 - 2¹⁰ = 69121220977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69121222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2658508526 + ... + 2658508551.

It is an arithmetic number, because the mean of its divisors is an integer number (18609559773).

Almost surely, 2^69121222001 is an apocalyptic number.

It is an amenable number.

69121222001 is a deficient number, since it is larger than the sum of its proper divisors (5317017091).

69121222001 is a wasteful number, since it uses less digits than its factorization.

69121222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317017090.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 69121222001 its reverse (10022212196), we get a palindrome (79143434197).

The spelling of 69121222001 in words is "sixty-nine billion, one hundred twenty-one million, two hundred twenty-two thousand, one".