122121201022010 has 16 divisors (see below), whose sum is σ = 222288028828200. Its totient is φ = 48299621078016.

The previous prime is 122121201021971. The next prime is 122121201022033. The reversal of 122121201022010 is 10220102121221.

It can be written as a sum of positive squares in 4 ways, for example, as 94774294273681 + 27346906748329 = 9735209^2 + 5229427^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122121201022010.

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, 68607415415 + ... + 68607417194.

Almost surely, 2^{122121201022010} is an apocalyptic number.

122121201022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121201022010 is a deficient number, since it is larger than the sum of its proper divisors (100166827806190).

122121201022010 is a wasteful number, since it uses less digits than its factorization.

122121201022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137214832705.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122121201022010 its reverse (10220102121221), we get a palindrome (132341303143231).

The spelling of 122121201022010 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, twenty-two thousand, ten".