220101221102212 has 6 divisors (see below), whose sum is σ = 385177136928878. Its totient is φ = 110050610551104.

The previous prime is 220101221102197. The next prime is 220101221102219. The reversal of 220101221102212 is 212201122101022.

It can be written as a sum of positive squares in only one way, i.e., 220101139669636 + 81432576 = 14835806^2 + 9024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220101221102212.

It is not an unprimeable number, because it can be changed into a prime (220101221102219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27512652637773 + ... + 27512652637780.

Almost surely, 2^{220101221102212} is an apocalyptic number.

It is an amenable number.

220101221102212 is a deficient number, since it is larger than the sum of its proper divisors (165075915826666).

220101221102212 is a wasteful number, since it uses less digits than its factorization.

220101221102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55025305275557 (or 55025305275555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220101221102212 its reverse (212201122101022), we get a palindrome (432302343203234).

The spelling of 220101221102212 in words is "two hundred twenty trillion, one hundred one billion, two hundred twenty-one million, one hundred two thousand, two hundred twelve".