101221322212 has 6 divisors (see below), whose sum is σ = 177137313878. Its totient is φ = 50610661104.

The previous prime is 101221322197. The next prime is 101221322231. The reversal of 101221322212 is 212223122101.

It can be written as a sum of positive squares in only one way, i.e., 59993644096 + 41227678116 = 244936^2 + 203046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101221322212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652665273 + ... + 12652665280.

Almost surely, 2^101221322212 is an apocalyptic number.

It is an amenable number.

101221322212 is a deficient number, since it is larger than the sum of its proper divisors (75915991666).

101221322212 is a wasteful number, since it uses less digits than its factorization.

101221322212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25305330557 (or 25305330555 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 101221322212 its reverse (212223122101), we get a palindrome (313444444313).

The spelling of 101221322212 in words is "one hundred one billion, two hundred twenty-one million, three hundred twenty-two thousand, two hundred twelve".