40421212310000 has 100 divisors (see below), whose sum is σ = 97889622537432. Its totient is φ = 16164218208000.

The previous prime is 40421212309997. The next prime is 40421212310041. The reversal of 40421212310000 is 1321212404.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×40421212310000² (a number of 28 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37498562 + ... + 38561438.

Almost surely, 2^{40421212310000} is an apocalyptic number.

40421212310000 is a gapful number since it is divisible by the number (40) 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 40421212310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48944811268716).

40421212310000 is an abundant number, since it is smaller than the sum of its proper divisors (57468410227432).

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

40421212310000 is a wasteful number, since it uses less digits than its factorization.

40421212310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066708 (or 1066687 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 40421212310000 its reverse (1321212404), we get a palindrome (40422533522404).

The spelling of 40421212310000 in words is "forty trillion, four hundred twenty-one billion, two hundred twelve million, three hundred ten thousand".