20221232046 has 64 divisors (see below), whose sum is σ = 44786400768. Its totient is φ = 6054084608.

The previous prime is 20221231997. The next prime is 20221232047. The reversal of 20221232046 is 64023212202.

It is a happy number.

It is a super-2 number, since 2×20221232046² (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 (20221232047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029550 + ... + 1049006.

It is an arithmetic number, because the mean of its divisors is an integer number (699787512).

Almost surely, 2^20221232046 is an apocalyptic number.

20221232046 is an abundant number, since it is smaller than the sum of its proper divisors (24565168722).

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

20221232046 is a wasteful number, since it uses less digits than its factorization.

20221232046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19945.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20221232046 its reverse (64023212202), we get a palindrome (84244444248).

The spelling of 20221232046 in words is "twenty billion, two hundred twenty-one million, two hundred thirty-two thousand, forty-six".