40231112101220 has 24 divisors (see below), whose sum is σ = 84485719348800. Its totient is φ = 16092371709792.

The previous prime is 40231112101199. The next prime is 40231112101223. The reversal of 40231112101220 is 2210121113204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40231112101192 and 40231112101201.

It is not an unprimeable number, because it can be changed into a prime (40231112101223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54521 + ... + 8970239.

It is an arithmetic number, because the mean of its divisors is an integer number (3520238306200).

Almost surely, 2^{40231112101220} is an apocalyptic number.

It is an amenable number.

40231112101220 is an abundant number, since it is smaller than the sum of its proper divisors (44254607247580).

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

40231112101220 is a wasteful number, since it uses less digits than its factorization.

40231112101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141347 (or 9141345 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 40231112101220 its reverse (2210121113204), we get a palindrome (42441233214424).

The spelling of 40231112101220 in words is "forty trillion, two hundred thirty-one billion, one hundred twelve million, one hundred one thousand, two hundred twenty".