33420213221142 has 64 divisors (see below), whose sum is σ = 73253950875648. Its totient is φ = 10080588672000.

The previous prime is 33420213221123. The next prime is 33420213221177. The reversal of 33420213221142 is 24112231202433.

It is a happy number.

It is a super-2 number, since 2×33420213221142² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17195142 + ... + 19039782.

It is an arithmetic number, because the mean of its divisors is an integer number (1144592982432).

Almost surely, 2^{33420213221142} is an apocalyptic number.

33420213221142 is an abundant number, since it is smaller than the sum of its proper divisors (39833737654506).

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

33420213221142 is a wasteful number, since it uses less digits than its factorization.

33420213221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845925.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 33420213221142 its reverse (24112231202433), we get a palindrome (57532444423575).

The spelling of 33420213221142 in words is "thirty-three trillion, four hundred twenty billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred forty-two".