1102021012 has 6 divisors (see below), whose sum is σ = 1928536778. Its totient is φ = 551010504.

The previous prime is 1102021009. The next prime is 1102021027. The reversal of 1102021012 is 2101202011.

It can be written as a sum of positive squares in only one way, i.e., 953327376 + 148693636 = 30876^2 + 12194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1102021012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137752623 + ... + 137752630.

Almost surely, 2^1102021012 is an apocalyptic number.

It is an amenable number.

1102021012 is a deficient number, since it is larger than the sum of its proper divisors (826515766).

1102021012 is a wasteful number, since it uses less digits than its factorization.

1102021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275505257 (or 275505255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1102021012 is about 33196.7018241270. The cubic root of 1102021012 is about 1032.9119257974.

Adding to 1102021012 its reverse (2101202011), we get a palindrome (3203223023).

The spelling of 1102021012 in words is "one billion, one hundred two million, twenty-one thousand, twelve".