122420121222 has 16 divisors (see below), whose sum is σ = 279817420032. Its totient is φ = 34977177480.

The previous prime is 122420121221. The next prime is 122420121223. The reversal of 122420121222 is 222121024221.

It is an interprime number because it is at equal distance from previous prime (122420121221) and next prime (122420121223).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122420121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457382354 + ... + 1457382437.

It is an arithmetic number, because the mean of its divisors is an integer number (17488588752).

Almost surely, 2^122420121222 is an apocalyptic number.

122420121222 is an abundant number, since it is smaller than the sum of its proper divisors (157397298810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122420121222 is a wasteful number, since it uses less digits than its factorization.

122420121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914764803.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 122420121222 its reverse (222121024221), we get a palindrome (344541145443).

The spelling of 122420121222 in words is "one hundred twenty-two billion, four hundred twenty million, one hundred twenty-one thousand, two hundred twenty-two".