122121010 has 32 divisors (see below), whose sum is σ = 244337472. Its totient is φ = 43567680.

The previous prime is 122120987. The next prime is 122121017. The reversal of 122121010 is 10121221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (122121017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644 + ... + 16303.

It is an arithmetic number, because the mean of its divisors is an integer number (7635546).

Almost surely, 2^122121010 is an apocalyptic number.

122121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121010 is an abundant number, since it is smaller than the sum of its proper divisors (122216462).

122121010 is a wasteful number, since it uses less digits than its factorization.

122121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21018.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 122121010 is about 11050.8375248214. The cubic root of 122121010 is about 496.1314931678.

Adding to 122121010 its reverse (10121221), we get a palindrome (132242231).

The spelling of 122121010 in words is "one hundred twenty-two million, one hundred twenty-one thousand, ten".