4021342042212 has 192 divisors, whose sum is σ = 11517865632000. Its totient is φ = 1218169497600.

The previous prime is 4021342042177. The next prime is 4021342042219. The reversal of 4021342042212 is 2122402431204.

It is a happy number.

4021342042212 is a `hidden beast` number, since 4 + 0 + 2 + 13 + 420 + 4 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4021342042219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 389622012 + ... + 389632332.

It is an arithmetic number, because the mean of its divisors is an integer number (59988883500).

Almost surely, 2^{4021342042212} 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 4021342042212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5758932816000).

4021342042212 is an abundant number, since it is smaller than the sum of its proper divisors (7496523589788).

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

4021342042212 is a wasteful number, since it uses less digits than its factorization.

4021342042212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14406 (or 14386 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4021342042212 its reverse (2122402431204), we get a palindrome (6143744473416).

The spelling of 4021342042212 in words is "four trillion, twenty-one billion, three hundred forty-two million, forty-two thousand, two hundred twelve".