122029920221 has 8 divisors (see below), whose sum is σ = 134416012224. Its totient is φ = 109859238720.

The previous prime is 122029920193. The next prime is 122029920227.

It is a happy number.

122029920221 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-122029920221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122029920227) 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, 53851436 + ... + 53853701.

It is an arithmetic number, because the mean of its divisors is an integer number (16802001528).

Almost surely, 2^122029920221 is an apocalyptic number.

122029920221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122029920221 is a deficient number, since it is larger than the sum of its proper divisors (12386092003).

122029920221 is a wasteful number, since it uses less digits than its factorization.

122029920221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107705251.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 122029920221 in words is "one hundred twenty-two billion, twenty-nine million, nine hundred twenty thousand, two hundred twenty-one".