122222010100021 has 8 divisors (see below), whose sum is σ = 133289826010880. Its totient is φ = 111392211735792.

The previous prime is 122222010100019. The next prime is 122222010100031. The reversal of 122222010100021 is 120001010222221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122222010100021 - 2¹ = 122222010100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222010099968 and 122222010100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222010100031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59504385585 + ... + 59504387638.

It is an arithmetic number, because the mean of its divisors is an integer number (16661228251360).

Almost surely, 2^{122222010100021} is an apocalyptic number.

It is an amenable number.

122222010100021 is a deficient number, since it is larger than the sum of its proper divisors (11067815910859).

122222010100021 is a wasteful number, since it uses less digits than its factorization.

122222010100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119008773315.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122222010100021 its reverse (120001010222221), we get a palindrome (242223020322242).

The spelling of 122222010100021 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, ten million, one hundred thousand, twenty-one".