1000122121102 has 32 divisors (see below), whose sum is σ = 1747012240512. Its totient is φ = 425198728704.

The previous prime is 1000122121013. The next prime is 1000122121121. The reversal of 1000122121102 is 2011212210001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24050713 + ... + 24092260.

It is an arithmetic number, because the mean of its divisors is an integer number (54594132516).

Almost surely, 2^{1000122121102} is an apocalyptic number.

1000122121102 is a deficient number, since it is larger than the sum of its proper divisors (746890119410).

1000122121102 is a wasteful number, since it uses less digits than its factorization.

1000122121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48143052.

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

Adding to 1000122121102 its reverse (2011212210001), we get a palindrome (3011334331103).

The spelling of 1000122121102 in words is "one trillion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred two".