2221342550 has 96 divisors (see below), whose sum is σ = 4820262912. Its totient is φ = 745908480.

The previous prime is 2221342489. The next prime is 2221342579. The reversal of 2221342550 is 552431222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5799659 + ... + 5800041.

It is an arithmetic number, because the mean of its divisors is an integer number (50211072).

Almost surely, 2^2221342550 is an apocalyptic number.

2221342550 is an abundant number, since it is smaller than the sum of its proper divisors (2598920362).

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

2221342550 is a wasteful number, since it uses less digits than its factorization.

2221342550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2221342550 is about 47131.1208226581. The cubic root of 2221342550 is about 1304.7836676481.

Adding to 2221342550 its reverse (552431222), we get a palindrome (2773773772).

The spelling of 2221342550 in words is "two billion, two hundred twenty-one million, three hundred forty-two thousand, five hundred fifty".