201001020210122 has 24 divisors (see below), whose sum is σ = 342830181248100. Its totient is φ = 88213613882240.

The previous prime is 201001020210121. The next prime is 201001020210143. The reversal of 201001020210122 is 221012020100102.

It can be written as a sum of positive squares in 2 ways, for example, as 196093559162281 + 4907461047841 = 14003341^2 + 2215279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201001020210097 and 201001020210106.

It is not an unprimeable number, because it can be changed into a prime (201001020210121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14320384847 + ... + 14320398882.

Almost surely, 2^{201001020210122} is an apocalyptic number.

201001020210122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201001020210122 is a deficient number, since it is larger than the sum of its proper divisors (141829161037978).

201001020210122 is a wasteful number, since it uses less digits than its factorization.

201001020210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28640783782 (or 28640783771 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201001020210122 its reverse (221012020100102), we get a palindrome (422013040310224).

The spelling of 201001020210122 in words is "two hundred one trillion, one billion, twenty million, two hundred ten thousand, one hundred twenty-two".