122010621 has 4 divisors (see below), whose sum is σ = 162680832. Its totient is φ = 81340412.

The previous prime is 122010619. The next prime is 122010661. The reversal of 122010621 is 126010221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 126010221 = 3 ⋅42003407.

It is a cyclic number.

It is not a de Polignac number, because 122010621 - 2¹ = 122010619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122010621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20335101 + ... + 20335106.

It is an arithmetic number, because the mean of its divisors is an integer number (40670208).

Almost surely, 2^122010621 is an apocalyptic number.

It is an amenable number.

122010621 is a deficient number, since it is larger than the sum of its proper divisors (40670211).

122010621 is an equidigital number, since it uses as much as digits as its factorization.

122010621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40670210.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 122010621 is about 11045.8417968030. The cubic root of 122010621 is about 495.9819585117.

Adding to 122010621 its reverse (126010221), we get a palindrome (248020842).

The spelling of 122010621 in words is "one hundred twenty-two million, ten thousand, six hundred twenty-one".