122121221023 has 8 divisors (see below), whose sum is σ = 126427538880. Its totient is φ = 117821252640.

The previous prime is 122121221009. The next prime is 122121221119. The reversal of 122121221023 is 320122121221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121221023 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 (122121222023) 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, 1548208 + ... + 1625173.

It is an arithmetic number, because the mean of its divisors is an integer number (15803442360).

Almost surely, 2^122121221023 is an apocalyptic number.

122121221023 is a deficient number, since it is larger than the sum of its proper divisors (4306317857).

122121221023 is a wasteful number, since it uses less digits than its factorization.

122121221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174737.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122121221023 its reverse (320122121221), we get a palindrome (442243342244).

It can be divided in two parts, 12212 and 1221023, that added together give a triangular number (1233235 = T₁₅₇₀).

The spelling of 122121221023 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-three".