1000121222110 has 32 divisors (see below), whose sum is σ = 1806510778560. Its totient is φ = 398650906368.

The previous prime is 1000121222071. The next prime is 1000121222129. The reversal of 1000121222110 is 112221210001.

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, 10793056 + ... + 10885324.

It is an arithmetic number, because the mean of its divisors is an integer number (56453461830).

Almost surely, 2^{1000121222110} is an apocalyptic number.

1000121222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000121222110 is a deficient number, since it is larger than the sum of its proper divisors (806389556450).

1000121222110 is a wasteful number, since it uses less digits than its factorization.

1000121222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96052.

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

Adding to 1000121222110 its reverse (112221210001), we get a palindrome (1112342432111).

The spelling of 1000121222110 in words is "one trillion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred ten".