2211010022221 has 24 divisors (see below), whose sum is σ = 2991118468352. Its totient is φ = 1590336871200.

The previous prime is 2211010022191. The next prime is 2211010022237. The reversal of 2211010022221 is 1222200101122.

It is a happy number.

It is not a de Polignac number, because 2211010022221 - 2¹⁵ = 2211009989453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211010022195 and 2211010022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211010022251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100389045 + ... + 100411066.

Almost surely, 2^{2211010022221} is an apocalyptic number.

It is an amenable number.

2211010022221 is a deficient number, since it is larger than the sum of its proper divisors (780108446131).

2211010022221 is a wasteful number, since it uses less digits than its factorization.

2211010022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200800153 (or 200800142 counting only the distinct ones).

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

Adding to 2211010022221 its reverse (1222200101122), we get a palindrome (3433210123343).

The spelling of 2211010022221 in words is "two trillion, two hundred eleven billion, ten million, twenty-two thousand, two hundred twenty-one".