20120012212 has 24 divisors (see below), whose sum is σ = 36679301120. Its totient is φ = 9646166880.

The previous prime is 20120012207. The next prime is 20120012219. The reversal of 20120012212 is 21221002102.

It is a happy number.

It is a super-2 number, since 2×20120012212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20120012192 and 20120012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120012219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730788 + ... + 757819.

Almost surely, 2^20120012212 is an apocalyptic number.

It is an amenable number.

20120012212 is a deficient number, since it is larger than the sum of its proper divisors (16559288908).

20120012212 is a wasteful number, since it uses less digits than its factorization.

20120012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488751 (or 1488749 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20120012212 its reverse (21221002102), we get a palindrome (41341014314).

The spelling of 20120012212 in words is "twenty billion, one hundred twenty million, twelve thousand, two hundred twelve".