1012011102 has 12 divisors (see below), whose sum is σ = 2192690760. Its totient is φ = 337337028.

The previous prime is 1012011061. The next prime is 1012011107. The reversal of 1012011102 is 2011102101.

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 not an unprimeable number, because it can be changed into a prime (1012011107) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 28111402 + ... + 28111437.

It is an arithmetic number, because the mean of its divisors is an integer number (182724230).

Almost surely, 2^1012011102 is an apocalyptic number.

1012011102 is an abundant number, since it is smaller than the sum of its proper divisors (1180679658).

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

1012011102 is a wasteful number, since it uses less digits than its factorization.

1012011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56222847 (or 56222844 counting only the distinct ones).

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

The square root of 1012011102 is about 31812.1219348851. The cubic root of 1012011102 is about 1003.9877771616.

Adding to 1012011102 its reverse (2011102101), we get a palindrome (3023113203).

Subtracting 1012011102 from its reverse (2011102101), we obtain a palindrome (999090999).

It can be divided in two parts, 101 and 2011102, that multiplied together give a palindrome (203121302).

The spelling of 1012011102 in words is "one billion, twelve million, eleven thousand, one hundred two".