122010212121 has 12 divisors (see below), whose sum is σ = 189240329232. Its totient is φ = 69720121128.

The previous prime is 122010212111. The next prime is 122010212131. The reversal of 122010212121 is 121212010221.

It is an interprime number because it is at equal distance from previous prime (122010212111) and next prime (122010212131).

It is not a de Polignac number, because 122010212121 - 2¹⁷ = 122010081049 is a prime.

It is a super-2 number, since 2×122010212121² (a number of 23 digits) contains 22 as substring.

122010212121 is a modest number, since divided by 212121 gives 122010 as remainder.

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 122010212121.

It is not an unprimeable number, because it can be changed into a prime (122010212111) 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, 415000575 + ... + 415000868.

It is an arithmetic number, because the mean of its divisors is an integer number (15770027436).

Almost surely, 2^122010212121 is an apocalyptic number.

It is an amenable number.

122010212121 is a deficient number, since it is larger than the sum of its proper divisors (67230117111).

122010212121 is an equidigital number, since it uses as much as digits as its factorization.

122010212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830001460 (or 830001453 counting only the distinct ones).

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

Adding to 122010212121 its reverse (121212010221), we get a palindrome (243222222342).

The spelling of 122010212121 in words is "one hundred twenty-two billion, ten million, two hundred twelve thousand, one hundred twenty-one".