1220632360221 has 32 divisors (see below), whose sum is σ = 1700792142336. Its totient is φ = 778009536000.

The previous prime is 1220632360219. The next prime is 1220632360223.

1220632360221 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1220632360219) and next prime (1220632360223).

It is not a de Polignac number, because 1220632360221 - 2¹ = 1220632360219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220632360223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1733155 + ... + 2333471.

It is an arithmetic number, because the mean of its divisors is an integer number (53149754448).

Almost surely, 2^{1220632360221} is an apocalyptic number.

It is an amenable number.

1220632360221 is a deficient number, since it is larger than the sum of its proper divisors (480159782115).

1220632360221 is a wasteful number, since it uses less digits than its factorization.

1220632360221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600693.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 1220632360221 in words is "one trillion, two hundred twenty billion, six hundred thirty-two million, three hundred sixty thousand, two hundred twenty-one".