20221200212 has 12 divisors (see below), whose sum is σ = 35518652820. Its totient is φ = 10073013696.

The previous prime is 20221200143. The next prime is 20221200247. The reversal of 20221200212 is 21200212202.

It can be written as a sum of positive squares in 2 ways, for example, as 4816915216 + 15404284996 = 69404^2 + 124114^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9395393 + ... + 9397544.

It is an arithmetic number, because the mean of its divisors is an integer number (2959887735).

Almost surely, 2^20221200212 is an apocalyptic number.

It is an amenable number.

20221200212 is a deficient number, since it is larger than the sum of its proper divisors (15297452608).

20221200212 is a wasteful number, since it uses less digits than its factorization.

20221200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18793210 (or 18793208 counting only the distinct ones).

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

Adding to 20221200212 its reverse (21200212202), we get a palindrome (41421412414).

It can be divided in two parts, 202 and 21200212, that multiplied together give a palindrome (4282442824).

The spelling of 20221200212 in words is "twenty billion, two hundred twenty-one million, two hundred thousand, two hundred twelve".