33221300142 has 64 divisors (see below), whose sum is σ = 73513681920. Its totient is φ = 9955106304.

The previous prime is 33221300087. The next prime is 33221300143. The reversal of 33221300142 is 24100312233.

It is a super-2 number, since 2×33221300142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221300143) 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, 1709959 + ... + 1729277.

It is an arithmetic number, because the mean of its divisors is an integer number (1148651280).

Almost surely, 2^33221300142 is an apocalyptic number.

33221300142 is an abundant number, since it is smaller than the sum of its proper divisors (40292381778).

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

33221300142 is a wasteful number, since it uses less digits than its factorization.

33221300142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20097.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33221300142 its reverse (24100312233), we get a palindrome (57321612375).

The spelling of 33221300142 in words is "thirty-three billion, two hundred twenty-one million, three hundred thousand, one hundred forty-two".