122121100010 has 64 divisors (see below), whose sum is σ = 272040297984. Its totient is φ = 38435731200.

The previous prime is 122121099979. The next prime is 122121100021. The reversal of 122121100010 is 10001121221.

122121100010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122121099964 and 122121100000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206006 + ... + 535425.

It is an arithmetic number, because the mean of its divisors is an integer number (4250629656).

Almost surely, 2^122121100010 is an apocalyptic number.

122121100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121100010 is an abundant number, since it is smaller than the sum of its proper divisors (149919197974).

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

122121100010 is a wasteful number, since it uses less digits than its factorization.

122121100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741639.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122121100010 its reverse (10001121221), we get a palindrome (132122221231).

The spelling of 122121100010 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, ten".