10021212222012 has 36 divisors (see below), whose sum is σ = 25331690846280. Its totient is φ = 3340365399072.

The previous prime is 10021212221987. The next prime is 10021212222269. The reversal of 10021212222012 is 21022221212001.

It is a happy number.

10021212222012 is a `hidden beast` number, since 100 + 212 + 122 + 220 + 12 = 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, 1630438 + ... + 4764530.

Almost surely, 2^{10021212222012} is an apocalyptic number.

10021212222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021212222012 is an abundant number, since it is smaller than the sum of its proper divisors (15310478624268).

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

10021212222012 is a wasteful number, since it uses less digits than its factorization.

10021212222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222922 (or 3222917 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10021212222012 its reverse (21022221212001), we get a palindrome (31043433434013).

The spelling of 10021212222012 in words is "ten trillion, twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, twelve".