20201222012 has 24 divisors (see below), whose sum is σ = 36242817072. Its totient is φ = 9846518400.

The previous prime is 20201221993. The next prime is 20201222017. The reversal of 20201222012 is 21022210202.

It is a super-2 number, since 2×20201222012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201222017) 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, 164018 + ... + 259430.

It is an arithmetic number, because the mean of its divisors is an integer number (1510117378).

Almost surely, 2^20201222012 is an apocalyptic number.

It is an amenable number.

20201222012 is a deficient number, since it is larger than the sum of its proper divisors (16041595060).

20201222012 is a wasteful number, since it uses less digits than its factorization.

20201222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96749 (or 96747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20201222012 its reverse (21022210202), we get a palindrome (41223432214).

The spelling of 20201222012 in words is "twenty billion, two hundred one million, two hundred twenty-two thousand, twelve".