78022120222201 has 4 divisors (see below), whose sum is σ = 78024797100432. Its totient is φ = 78019443343972.

The previous prime is 78022120222199. The next prime is 78022120222231. The reversal of 78022120222201 is 10222202122087.

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 78022120222201 - 2¹ = 78022120222199 is a prime.

It is a super-2 number, since 2×78022120222201² (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 (78022120222231) 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, 1338395395 + ... + 1338453688.

It is an arithmetic number, because the mean of its divisors is an integer number (19506199275108).

Almost surely, 2^{78022120222201} is an apocalyptic number.

It is an amenable number.

78022120222201 is a deficient number, since it is larger than the sum of its proper divisors (2676878231).

78022120222201 is a wasteful number, since it uses less digits than its factorization.

78022120222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676878230.

The product of its (nonzero) digits is 7168, while the sum is 31.

Adding to 78022120222201 its reverse (10222202122087), we get a palindrome (88244322344288).

The spelling of 78022120222201 in words is "seventy-eight trillion, twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred one".