22031241012 has 216 divisors, whose sum is σ = 64561468608. Its totient is φ = 6317245440.

The previous prime is 22031241007. The next prime is 22031241047. The reversal of 22031241012 is 21014213022.

It is a happy number.

22031241012 is a `hidden beast` number, since 220 + 31 + 2 + 410 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9717103 + ... + 9719369.

It is an arithmetic number, because the mean of its divisors is an integer number (298895688).

Almost surely, 2^22031241012 is an apocalyptic number.

22031241012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031241012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32280734304).

22031241012 is an abundant number, since it is smaller than the sum of its proper divisors (42530227596).

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

22031241012 is a wasteful number, since it uses less digits than its factorization.

22031241012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22031241012 its reverse (21014213022), we get a palindrome (43045454034).

The spelling of 22031241012 in words is "twenty-two billion, thirty-one million, two hundred forty-one thousand, twelve".