20211012212 has 24 divisors (see below), whose sum is σ = 35598526656. Its totient is φ = 10040217408.

The previous prime is 20211012191. The next prime is 20211012259. The reversal of 20211012212 is 21221011202.

It is a super-4 number, since 4×20211012212⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358073 + ... + 410655.

It is an arithmetic number, because the mean of its divisors is an integer number (1483271944).

Almost surely, 2^20211012212 is an apocalyptic number.

It is an amenable number.

20211012212 is a deficient number, since it is larger than the sum of its proper divisors (15387514444).

20211012212 is a wasteful number, since it uses less digits than its factorization.

20211012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53207 (or 53205 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211012212 its reverse (21221011202), we get a palindrome (41432023414).

The spelling of 20211012212 in words is "twenty billion, two hundred eleven million, twelve thousand, two hundred twelve".