20212011001212 has 24 divisors (see below), whose sum is σ = 47162121369216. Its totient is φ = 6737228090928.

The previous prime is 20212011001211. The next prime is 20212011001219. The reversal of 20212011001212 is 21210011021202.

It is a super-2 number, since 2×20212011001212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212011001191 and 20212011001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011001211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12838648 + ... + 14326719.

It is an arithmetic number, because the mean of its divisors is an integer number (1965088390384).

Almost surely, 2^{20212011001212} is an apocalyptic number.

It is an amenable number.

20212011001212 is an abundant number, since it is smaller than the sum of its proper divisors (26950110368004).

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

20212011001212 is a wasteful number, since it uses less digits than its factorization.

20212011001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27227377 (or 27227375 counting only the distinct ones).

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

Adding to 20212011001212 its reverse (21210011021202), we get a palindrome (41422022022414).

The spelling of 20212011001212 in words is "twenty trillion, two hundred twelve billion, eleven million, one thousand, two hundred twelve".