221331011020010 has 8 divisors (see below), whose sum is σ = 398395819836036. Its totient is φ = 88532404408000.

The previous prime is 221331011019983. The next prime is 221331011020123. The reversal of 221331011020010 is 10020110133122.

It can be written as a sum of positive squares in 2 ways, for example, as 210907624430281 + 10423386589729 = 14522659^2 + 3228527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11066550550991 + ... + 11066550551010.

Almost surely, 2^{221331011020010} is an apocalyptic number.

221331011020010 is a deficient number, since it is larger than the sum of its proper divisors (177064808816026).

221331011020010 is a wasteful number, since it uses less digits than its factorization.

221331011020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22133101102008.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 221331011020010 its reverse (10020110133122), we get a palindrome (231351121153132).

The spelling of 221331011020010 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, eleven million, twenty thousand, ten".