100222021012 has 6 divisors (see below), whose sum is σ = 175388536778. Its totient is φ = 50111010504.

The previous prime is 100222020991. The next prime is 100222021013. The reversal of 100222021012 is 210120222001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100181112196 + 40908816 = 316514^2 + 6396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100222020983 and 100222021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222021013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527752623 + ... + 12527752630.

Almost surely, 2^100222021012 is an apocalyptic number.

It is an amenable number.

100222021012 is a deficient number, since it is larger than the sum of its proper divisors (75166515766).

100222021012 is a wasteful number, since it uses less digits than its factorization.

100222021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25055505257 (or 25055505255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100222021012 its reverse (210120222001), we get a palindrome (310342243013).

The spelling of 100222021012 in words is "one hundred billion, two hundred twenty-two million, twenty-one thousand, twelve".