20122013212 has 48 divisors (see below), whose sum is σ = 43150786560. Its totient is φ = 8013687552.

The previous prime is 20122013201. The next prime is 20122013221. The reversal of 20122013212 is 21231022102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 229948 + ... + 305155.

It is an arithmetic number, because the mean of its divisors is an integer number (898974720).

Almost surely, 2^20122013212 is an apocalyptic number.

It is an amenable number.

20122013212 is an abundant number, since it is smaller than the sum of its proper divisors (23028773348).

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

20122013212 is a wasteful number, since it uses less digits than its factorization.

20122013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535210 (or 535208 counting only the distinct ones).

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

Adding to 20122013212 its reverse (21231022102), we get a palindrome (41353035314).

The spelling of 20122013212 in words is "twenty billion, one hundred twenty-two million, thirteen thousand, two hundred twelve".