101213223028 has 12 divisors (see below), whose sum is σ = 177224888932. Its totient is φ = 50577540480.

The previous prime is 101213222993. The next prime is 101213223029. The reversal of 101213223028 is 820322312101.

It can be written as a sum of positive squares in 2 ways, for example, as 32449699044 + 68763523984 = 180138^2 + 262228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101213222993 and 101213223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213223029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7259925 + ... + 7273852.

Almost surely, 2^101213223028 is an apocalyptic number.

It is an amenable number.

101213223028 is a deficient number, since it is larger than the sum of its proper divisors (76011665904).

101213223028 is a wasteful number, since it uses less digits than its factorization.

101213223028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535522 (or 14535520 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 101213223028 its reverse (820322312101), we get a palindrome (921535535129).

The spelling of 101213223028 in words is "one hundred one billion, two hundred thirteen million, two hundred twenty-three thousand, twenty-eight".