1002011201121 has 16 divisors (see below), whose sum is σ = 1528266109824. Its totient is φ = 572055867264.

The previous prime is 1002011201111. The next prime is 1002011201161. The reversal of 1002011201121 is 1211021102001.

It is not a de Polignac number, because 1002011201121 - 2¹⁰ = 1002011200097 is a prime.

It is a super-2 number, since 2×1002011201121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002011201097 and 1002011201106.

It is not an unprimeable number, because it can be changed into a prime (1002011201111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21724830 + ... + 21770903.

It is an arithmetic number, because the mean of its divisors is an integer number (95516631864).

Almost surely, 2^{1002011201121} is an apocalyptic number.

It is an amenable number.

1002011201121 is a deficient number, since it is larger than the sum of its proper divisors (526254908703).

1002011201121 is a wasteful number, since it uses less digits than its factorization.

1002011201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43496840.

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

Adding to 1002011201121 its reverse (1211021102001), we get a palindrome (2213032303122).

The spelling of 1002011201121 in words is "one trillion, two billion, eleven million, two hundred one thousand, one hundred twenty-one".