1022012102100 has 144 divisors (see below), whose sum is σ = 3250467956736. Its totient is φ = 245869104000.

The previous prime is 1022012102093. The next prime is 1022012102107. The reversal of 1022012102100 is 12012102201.

It is an interprime number because it is at equal distance from previous prime (1022012102093) and next prime (1022012102107).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022012102107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 749764 + ... + 1614363.

It is an arithmetic number, because the mean of its divisors is an integer number (22572694144).

Almost surely, 2^{1022012102100} is an apocalyptic number.

1022012102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022012102100 is an abundant number, since it is smaller than the sum of its proper divisors (2228455854636).

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

1022012102100 is a wasteful number, since it uses less digits than its factorization.

1022012102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364286 (or 2364279 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1022012102100 its reverse (12012102201), we get a palindrome (1034024204301).

The spelling of 1022012102100 in words is "one trillion, twenty-two billion, twelve million, one hundred two thousand, one hundred".