1120001021021 has 8 divisors (see below), whose sum is σ = 1184535880800. Its totient is φ = 1056024905040.

The previous prime is 1120001020973. The next prime is 1120001021033. The reversal of 1120001021021 is 1201201000211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1120001021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120001020993 and 1120001021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120001041021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139681826 + ... + 139689843.

It is an arithmetic number, because the mean of its divisors is an integer number (148066985100).

Almost surely, 2^{1120001021021} is an apocalyptic number.

It is an amenable number.

1120001021021 is a deficient number, since it is larger than the sum of its proper divisors (64534859779).

1120001021021 is a wasteful number, since it uses less digits than its factorization.

1120001021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279371899.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1120001021021 its reverse (1201201000211), we get a palindrome (2321202021232).

The spelling of 1120001021021 in words is "one trillion, one hundred twenty billion, one million, twenty-one thousand, twenty-one".