20225211512 has 16 divisors (see below), whose sum is σ = 41369751000. Its totient is φ = 9193277920.

The previous prime is 20225211509. The next prime is 20225211521. The reversal of 20225211512 is 21511252202.

It is a super-2 number, since 2×20225211512² (a number of 21 digits) contains 22 as substring.

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, 114915887 + ... + 114916062.

Almost surely, 2^20225211512 is an apocalyptic number.

20225211512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20225211512 is an abundant number, since it is smaller than the sum of its proper divisors (21144539488).

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

20225211512 is a wasteful number, since it uses less digits than its factorization.

20225211512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229831966 (or 229831962 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 20225211512 its reverse (21511252202), we get a palindrome (41736463714).

The spelling of 20225211512 in words is "twenty billion, two hundred twenty-five million, two hundred eleven thousand, five hundred twelve".