1000121881211 has 8 divisors (see below), whose sum is σ = 1000691266560. Its totient is φ = 999552662568.

The previous prime is 1000121881207. The next prime is 1000121881217. The reversal of 1000121881211 is 1121881210001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000121881211 - 2² = 1000121881207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000121881217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13114730 + ... + 13190768.

It is an arithmetic number, because the mean of its divisors is an integer number (125086408320).

Almost surely, 2^{1000121881211} is an apocalyptic number.

1000121881211 is a deficient number, since it is larger than the sum of its proper divisors (569385349).

1000121881211 is an equidigital number, since it uses as much as digits as its factorization.

1000121881211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83353.

The product of its (nonzero) digits is 256, while the sum is 26.

The spelling of 1000121881211 in words is "one trillion, one hundred twenty-one million, eight hundred eighty-one thousand, two hundred eleven".