221300042402 has 32 divisors (see below), whose sum is σ = 355205081088. Its totient is φ = 103154070096.

The previous prime is 221300042387. The next prime is 221300042417. The reversal of 221300042402 is 204240003122.

It is an interprime number because it is at equal distance from previous prime (221300042387) and next prime (221300042417).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794993 + ... + 1036635.

It is an arithmetic number, because the mean of its divisors is an integer number (11100158784).

Almost surely, 2^221300042402 is an apocalyptic number.

221300042402 is a deficient number, since it is larger than the sum of its proper divisors (133905038686).

221300042402 is a wasteful number, since it uses less digits than its factorization.

221300042402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242174.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 221300042402 its reverse (204240003122), we get a palindrome (425540045524).

The spelling of 221300042402 in words is "two hundred twenty-one billion, three hundred million, forty-two thousand, four hundred two".