122021151 has 8 divisors (see below), whose sum is σ = 185937024. Its totient is φ = 69726360.

The previous prime is 122021149. The next prime is 122021171. The reversal of 122021151 is 151120221.

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

It is not a de Polignac number, because 122021151 - 2¹ = 122021149 is a prime.

It is a super-2 number, since 2×122021151² = 29778322582729602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122021151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021101) 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, 2905245 + ... + 2905286.

It is an arithmetic number, because the mean of its divisors is an integer number (23242128).

Almost surely, 2^122021151 is an apocalyptic number.

122021151 is a deficient number, since it is larger than the sum of its proper divisors (63915873).

122021151 is an equidigital number, since it uses as much as digits as its factorization.

122021151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810541.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 122021151 is about 11046.3184364747. The cubic root of 122021151 is about 495.9962265040.

Adding to 122021151 its reverse (151120221), we get a palindrome (273141372).

The spelling of 122021151 in words is "one hundred twenty-two million, twenty-one thousand, one hundred fifty-one".