2211022002121 has 16 divisors (see below), whose sum is σ = 2402995875840. Its totient is φ = 2026638210960.

The previous prime is 2211022002019. The next prime is 2211022002143. The reversal of 2211022002121 is 1212002201122.

It is a happy number.

It is not a de Polignac number, because 2211022002121 - 2¹⁵ = 2211021969353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211022002095 and 2211022002104.

It is not an unprimeable number, because it can be changed into a prime (2211022002221) 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, 2289846 + ... + 3108928.

It is an arithmetic number, because the mean of its divisors is an integer number (150187242240).

Almost surely, 2^{2211022002121} is an apocalyptic number.

It is an amenable number.

2211022002121 is a deficient number, since it is larger than the sum of its proper divisors (191973873719).

2211022002121 is a wasteful number, since it uses less digits than its factorization.

2211022002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823716.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2211022002121 its reverse (1212002201122), we get a palindrome (3423024203243).

The spelling of 2211022002121 in words is "two trillion, two hundred eleven billion, twenty-two million, two thousand, one hundred twenty-one".