42001222210064 has 160 divisors (see below), whose sum is σ = 91018522191744. Its totient is φ = 18651145973760.

The previous prime is 42001222210063. The next prime is 42001222210099. The reversal of 42001222210064 is 46001222210024.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (42001222210063) 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, 398452214 + ... + 398557610.

Almost surely, 2^{42001222210064} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42001222210064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45509261095872).

42001222210064 is an abundant number, since it is smaller than the sum of its proper divisors (49017299981680).

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

42001222210064 is a wasteful number, since it uses less digits than its factorization.

42001222210064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106105 (or 106099 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 42001222210064 its reverse (46001222210024), we get a palindrome (88002444420088).

The spelling of 42001222210064 in words is "forty-two trillion, one billion, two hundred twenty-two million, two hundred ten thousand, sixty-four".