1009221102 has 24 divisors (see below), whose sum is σ = 2245745736. Its totient is φ = 327314736.

The previous prime is 1009221079. The next prime is 1009221113. The reversal of 1009221102 is 2011229001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 757008 + ... + 758339.

It is an arithmetic number, because the mean of its divisors is an integer number (93572739).

Almost surely, 2^1009221102 is an apocalyptic number.

1009221102 is an abundant number, since it is smaller than the sum of its proper divisors (1236524634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1009221102 is a wasteful number, since it uses less digits than its factorization.

1009221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515392 (or 1515389 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1009221102 is about 31768.2404611902. The cubic root of 1009221102 is about 1003.0643011340.

It can be divided in two parts, 1009 and 221102, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 1009221102 in words is "one billion, nine million, two hundred twenty-one thousand, one hundred two".