1121002021011 has 32 divisors (see below), whose sum is σ = 1597148052480. Its totient is φ = 697358592000.

The previous prime is 1121002020979. The next prime is 1121002021021. The reversal of 1121002021011 is 1101202001211.

It is not a de Polignac number, because 1121002021011 - 2⁵ = 1121002020979 is a prime.

It is a super-2 number, since 2×1121002021011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121002021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606646 + ... + 1615556.

It is an arithmetic number, because the mean of its divisors is an integer number (49910876640).

Almost surely, 2^{1121002021011} is an apocalyptic number.

1121002021011 is a deficient number, since it is larger than the sum of its proper divisors (476146031469).

1121002021011 is a wasteful number, since it uses less digits than its factorization.

1121002021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009227.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121002021011 its reverse (1101202001211), we get a palindrome (2222204022222).

The spelling of 1121002021011 in words is "one trillion, one hundred twenty-one billion, two million, twenty-one thousand, eleven".