1012200121102 has 4 divisors (see below), whose sum is σ = 1518300181656. Its totient is φ = 506100060550.

The previous prime is 1012200121069. The next prime is 1012200121111. The reversal of 1012200121102 is 2011210022101.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253050030274 + ... + 253050030277.

It is an arithmetic number, because the mean of its divisors is an integer number (379575045414).

Almost surely, 2^{1012200121102} is an apocalyptic number.

1012200121102 is a deficient number, since it is larger than the sum of its proper divisors (506100060554).

1012200121102 is an equidigital number, since it uses as much as digits as its factorization.

1012200121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506100060553.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012200121102 its reverse (2011210022101), we get a palindrome (3023410143203).

Subtracting 1012200121102 from its reverse (2011210022101), we obtain a palindrome (999009900999).

The spelling of 1012200121102 in words is "one trillion, twelve billion, two hundred million, one hundred twenty-one thousand, one hundred two".