10210121221212 has 36 divisors (see below), whose sum is σ = 28155182762616. Its totient is φ = 3093976127520.

The previous prime is 10210121221207. The next prime is 10210121221229. The reversal of 10210121221212 is 21212212101201.

10210121221212 is a `hidden beast` number, since 1 + 0 + 210 + 1 + 21 + 221 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12891566803 + ... + 12891567594.

Almost surely, 2^{10210121221212} is an apocalyptic number.

10210121221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10210121221212 is an abundant number, since it is smaller than the sum of its proper divisors (17945061541404).

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

10210121221212 is a wasteful number, since it uses less digits than its factorization.

10210121221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25783134418 (or 25783134413 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10210121221212 its reverse (21212212101201), we get a palindrome (31422333322413).

The spelling of 10210121221212 in words is "ten trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".