221771043133034 has 4 divisors (see below), whose sum is σ = 332656564699554. Its totient is φ = 110885521566516.

The previous prime is 221771043132959. The next prime is 221771043133091. The reversal of 221771043133034 is 430331340177122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140685574599025 + 81085468534009 = 11861095^2 + 9004747^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221771043132982 and 221771043133000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55442760783257 + ... + 55442760783260.

Almost surely, 2^{221771043133034} is an apocalyptic number.

221771043133034 is a deficient number, since it is larger than the sum of its proper divisors (110885521566520).

221771043133034 is a wasteful number, since it uses less digits than its factorization.

221771043133034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110885521566519.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 221771043133034 in words is "two hundred twenty-one trillion, seven hundred seventy-one billion, forty-three million, one hundred thirty-three thousand, thirty-four".