42101224212440 has 32 divisors (see below), whose sum is σ = 94729811370480. Its totient is φ = 16840124015232.

The previous prime is 42101224212431. The next prime is 42101224212479. The reversal of 42101224212440 is 4421242210124.

It is a super-2 number, since 2×42101224212440² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9558227 + ... + 13249986.

Almost surely, 2^{42101224212440} is an apocalyptic number.

42101224212440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42101224212440 is an abundant number, since it is smaller than the sum of its proper divisors (52628587158040).

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

42101224212440 is a wasteful number, since it uses less digits than its factorization.

42101224212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22854371 (or 22854367 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 42101224212440 its reverse (4421242210124), we get a palindrome (46522466422564).

The spelling of 42101224212440 in words is "forty-two trillion, one hundred one billion, two hundred twenty-four million, two hundred twelve thousand, four hundred forty".