221415221005010 has 16 divisors (see below), whose sum is σ = 398555911529496. Its totient is φ = 88564196464128.

The previous prime is 221415221004979. The next prime is 221415221005049. The reversal of 221415221005010 is 10500122514122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 191378255606209 + 30036965398801 = 13833953^2 + 5480599^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236000657 + ... + 236936996.

Almost surely, 2^{221415221005010} is an apocalyptic number.

221415221005010 is a deficient number, since it is larger than the sum of its proper divisors (177140690524486).

221415221005010 is a wasteful number, since it uses less digits than its factorization.

221415221005010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472984477.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 221415221005010 its reverse (10500122514122), we get a palindrome (231915343519132).

The spelling of 221415221005010 in words is "two hundred twenty-one trillion, four hundred fifteen billion, two hundred twenty-one million, five thousand, ten".