1011021102 has 80 divisors (see below), whose sum is σ = 2788269792. Its totient is φ = 266639040.

The previous prime is 1011021071. The next prime is 1011021119. The reversal of 1011021102 is 2011201101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19549 + ... + 49032.

Almost surely, 2^1011021102 is an apocalyptic number.

1011021102 is an abundant number, since it is smaller than the sum of its proper divisors (1777248690).

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

1011021102 is a wasteful number, since it uses less digits than its factorization.

1011021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68615 (or 68606 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1011021102 is about 31796.5580212702. The cubic root of 1011021102 is about 1003.6602866220.

Adding to 1011021102 its reverse (2011201101), we get a palindrome (3022222203).

The spelling of 1011021102 in words is "one billion, eleven million, twenty-one thousand, one hundred two".