122120201021 has 8 divisors (see below), whose sum is σ = 150301785984. Its totient is φ = 96622576560.

The previous prime is 122120201017. The next prime is 122120201059. The reversal of 122120201021 is 120102021221.

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

It is a cyclic number.

It is not a de Polignac number, because 122120201021 - 2² = 122120201017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122120200987 and 122120201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120201081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670990025 + ... + 670990206.

It is an arithmetic number, because the mean of its divisors is an integer number (18787723248).

Almost surely, 2^122120201021 is an apocalyptic number.

It is an amenable number.

122120201021 is a deficient number, since it is larger than the sum of its proper divisors (28181584963).

122120201021 is a wasteful number, since it uses less digits than its factorization.

122120201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341980251.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122120201021 its reverse (120102021221), we get a palindrome (242222222242).

The spelling of 122120201021 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred one thousand, twenty-one".