2211112210021 has 16 divisors (see below), whose sum is σ = 2609113808448. Its totient is φ = 1847304835200.

The previous prime is 2211112210019. The next prime is 2211112210079. The reversal of 2211112210021 is 1200122111122.

It is not a de Polignac number, because 2211112210021 - 2¹ = 2211112210019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211112209977 and 2211112210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211112210421) 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, 34025520 + ... + 34090441.

It is an arithmetic number, because the mean of its divisors is an integer number (163069613028).

Almost surely, 2^{2211112210021} is an apocalyptic number.

It is an amenable number.

2211112210021 is a deficient number, since it is larger than the sum of its proper divisors (398001598427).

2211112210021 is a wasteful number, since it uses less digits than its factorization.

2211112210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116212.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211112210021 its reverse (1200122111122), we get a palindrome (3411234321143).

The spelling of 2211112210021 in words is "two trillion, two hundred eleven billion, one hundred twelve million, two hundred ten thousand, twenty-one".