20212123012 has 24 divisors (see below), whose sum is σ = 37594356800. Its totient is φ = 9481206816.

The previous prime is 20212123007. The next prime is 20212123027. The reversal of 20212123012 is 21032121202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283187 + ... + 1298842.

Almost surely, 2^20212123012 is an apocalyptic number.

It is an amenable number.

20212123012 is a deficient number, since it is larger than the sum of its proper divisors (17382233788).

20212123012 is a wasteful number, since it uses less digits than its factorization.

20212123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582155 (or 2582153 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20212123012 its reverse (21032121202), we get a palindrome (41244244214).

The spelling of 20212123012 in words is "twenty billion, two hundred twelve million, one hundred twenty-three thousand, twelve".