122221101010 has 16 divisors (see below), whose sum is σ = 232939039896. Its totient is φ = 46012649728.

The previous prime is 122221101007. The next prime is 122221101029. The reversal of 122221101010 is 10101122221.

It can be written as a sum of positive squares in 4 ways, for example, as 117294605289 + 4926495721 = 342483^2 + 70189^2 .

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, 359473657 + ... + 359473996.

Almost surely, 2^122221101010 is an apocalyptic number.

122221101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122221101010 is a deficient number, since it is larger than the sum of its proper divisors (110717938886).

122221101010 is a wasteful number, since it uses less digits than its factorization.

122221101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718947677.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122221101010 its reverse (10101122221), we get a palindrome (132322223231).

The spelling of 122221101010 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, ten".