40022101220004 has 72 divisors (see below), whose sum is σ = 103740543263448. Its totient is φ = 13001995284480.

The previous prime is 40022101219973. The next prime is 40022101220033. The reversal of 40022101220004 is 40002210122004.

It can be written as a sum of positive squares in 4 ways, for example, as 12835366691904 + 27186734528100 = 3582648^2 + 5214090^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12434737 + ... + 15318840.

It is an arithmetic number, because the mean of its divisors is an integer number (1440840878659).

Almost surely, 2^{40022101220004} is an apocalyptic number.

It is an amenable number.

40022101220004 is an abundant number, since it is smaller than the sum of its proper divisors (63718442043444).

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

40022101220004 is a wasteful number, since it uses less digits than its factorization.

40022101220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27754605 (or 27754600 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 40022101220004 its reverse (40002210122004), we get a palindrome (80024311342008).

It can be divided in two parts, 4002210122000 and 4, that added together give a palindrome (4002210122004).

The spelling of 40022101220004 in words is "forty trillion, twenty-two billion, one hundred one million, two hundred twenty thousand, four".