220221233034402 has 64 divisors (see below), whose sum is σ = 453520456041600. Its totient is φ = 71237764707840.

The previous prime is 220221233034391. The next prime is 220221233034427. The reversal of 220221233034402 is 204430332122022.

It is a self number, because there is not a number n which added to its sum of digits gives 220221233034402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615340752 + ... + 615698532.

It is an arithmetic number, because the mean of its divisors is an integer number (7086257125650).

Almost surely, 2^{220221233034402} is an apocalyptic number.

220221233034402 is an abundant number, since it is smaller than the sum of its proper divisors (233299223007198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220221233034402 is a wasteful number, since it uses less digits than its factorization.

220221233034402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365011.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 220221233034402 its reverse (204430332122022), we get a palindrome (424651565156424).

The spelling of 220221233034402 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred thirty-three million, thirty-four thousand, four hundred two".