122221121010 has 16 divisors (see below), whose sum is σ = 293330690496. Its totient is φ = 32592298928.

The previous prime is 122221120999. The next prime is 122221121023. The reversal of 122221121010 is 10121122221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037018654 + ... + 2037018713.

It is an arithmetic number, because the mean of its divisors is an integer number (18333168156).

Almost surely, 2^122221121010 is an apocalyptic number.

122221121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122221121010 is an abundant number, since it is smaller than the sum of its proper divisors (171109569486).

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

122221121010 is a wasteful number, since it uses less digits than its factorization.

122221121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074037377.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122221121010 its reverse (10121122221), we get a palindrome (132342243231).

The spelling of 122221121010 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, ten".