2121440442330 has 64 divisors (see below), whose sum is σ = 5606226390528. Its totient is φ = 509482148160.

The previous prime is 2121440442313. The next prime is 2121440442343. The reversal of 2121440442330 is 332440441212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30004912 + ... + 30075531.

It is an arithmetic number, because the mean of its divisors is an integer number (87597287352).

Almost surely, 2^{2121440442330} is an apocalyptic number.

2121440442330 is an abundant number, since it is smaller than the sum of its proper divisors (3484785948198).

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

2121440442330 is a wasteful number, since it uses less digits than its factorization.

2121440442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60080571.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2121440442330 its reverse (332440441212), we get a palindrome (2453880883542).

The spelling of 2121440442330 in words is "two trillion, one hundred twenty-one billion, four hundred forty million, four hundred forty-two thousand, three hundred thirty".