122152021 has 8 divisors (see below), whose sum is σ = 131160384. Its totient is φ = 113346240.

The previous prime is 122152001. The next prime is 122152033. The reversal of 122152021 is 120251221.

It is a happy number.

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 122152021 - 2¹³ = 122143829 is a prime.

It is a super-2 number, since 2×122152021² = 29842232468768882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122151986 and 122152004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152001) 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, 49395 + ... + 51808.

It is an arithmetic number, because the mean of its divisors is an integer number (16395048).

Almost surely, 2^122152021 is an apocalyptic number.

It is an amenable number.

122152021 is a deficient number, since it is larger than the sum of its proper divisors (9008363).

122152021 is a wasteful number, since it uses less digits than its factorization.

122152021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101291.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 122152021 is about 11052.2405420801. The cubic root of 122152021 is about 496.1734849365.

The spelling of 122152021 in words is "one hundred twenty-two million, one hundred fifty-two thousand, twenty-one".