122121022010 has 48 divisors (see below), whose sum is σ = 251471217816. Its totient is φ = 42438423552.

The previous prime is 122121021991. The next prime is 122121022013. The reversal of 122121022010 is 10220121221.

It can be written as a sum of positive squares in 12 ways, for example, as 55615317241 + 66505704769 = 235829^2 + 257887^2 .

It is not an unprimeable number, because it can be changed into a prime (122121022013) 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 23 ways as a sum of consecutive naturals, for example, 1587677 + ... + 1662816.

Almost surely, 2^122121022010 is an apocalyptic number.

122121022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121022010 is an abundant number, since it is smaller than the sum of its proper divisors (129350195806).

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

122121022010 is a wasteful number, since it uses less digits than its factorization.

122121022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250547 (or 3250530 counting only the distinct ones).

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

Adding to 122121022010 its reverse (10220121221), we get a palindrome (132341143231).

The spelling of 122121022010 in words is "one hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, ten".