1020002201121 has 16 divisors (see below), whose sum is σ = 1376923363200. Its totient is φ = 671559470208.

The previous prime is 1020002201111. The next prime is 1020002201191. The reversal of 1020002201121 is 1211022000201.

It is not a de Polignac number, because 1020002201121 - 2¹⁴ = 1020002184737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020002201097 and 1020002201106.

It is not an unprimeable number, because it can be changed into a prime (1020002201111) 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, 2052646 + ... + 2500671.

It is an arithmetic number, because the mean of its divisors is an integer number (86057710200).

Almost surely, 2^{1020002201121} is an apocalyptic number.

It is an amenable number.

1020002201121 is a deficient number, since it is larger than the sum of its proper divisors (356921162079).

1020002201121 is an equidigital number, since it uses as much as digits as its factorization.

1020002201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554248.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020002201121 its reverse (1211022000201), we get a palindrome (2231024201322).

The spelling of 1020002201121 in words is "one trillion, twenty billion, two million, two hundred one thousand, one hundred twenty-one".