122121012 has 48 divisors (see below), whose sum is σ = 307647872. Its totient is φ = 37480320.

The previous prime is 122120987. The next prime is 122121017. The reversal of 122121012 is 210121221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 83673 + ... + 85119.

Almost surely, 2^122121012 is an apocalyptic number.

122121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122121012 is an abundant number, since it is smaller than the sum of its proper divisors (185526860).

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

122121012 is a wasteful number, since it uses less digits than its factorization.

122121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122121012 is about 11050.8376153122. The cubic root of 122121012 is about 496.1314958762.

Adding to 122121012 its reverse (210121221), we get a palindrome (332242233).

It can be divided in two parts, 1221 and 21012, that multiplied together give a palindrome (25655652).

The spelling of 122121012 in words is "one hundred twenty-two million, one hundred twenty-one thousand, twelve".