221375437070 has 16 divisors (see below), whose sum is σ = 400540431600. Its totient is φ = 88091364864.

The previous prime is 221375437057. The next prime is 221375437099. The reversal of 221375437070 is 70734573122.

It is a congruent number.

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, 57349220 + ... + 57353079.

It is an arithmetic number, because the mean of its divisors is an integer number (25033776975).

Almost surely, 2^221375437070 is an apocalyptic number.

221375437070 is a deficient number, since it is larger than the sum of its proper divisors (179164994530).

221375437070 is a wasteful number, since it uses less digits than its factorization.

221375437070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114702499.

The product of its (nonzero) digits is 246960, while the sum is 41.

The spelling of 221375437070 in words is "two hundred twenty-one billion, three hundred seventy-five million, four hundred thirty-seven thousand, seventy".