2210222112021 has 448 divisors, whose sum is σ = 4478494924800. Its totient is φ = 1055336325120.

The previous prime is 2210222111969. The next prime is 2210222112061. The reversal of 2210222112021 is 1202112220122.

It is a happy number.

It is not a de Polignac number, because 2210222112021 - 2¹³ = 2210222103829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2210222111985 and 2210222112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210222112061) by changing a digit.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 11106643680 + ... + 11106643878.

Almost surely, 2^{2210222112021} is an apocalyptic number.

2210222112021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2210222112021 is an abundant number, since it is smaller than the sum of its proper divisors (2268272812779).

2210222112021 is a wasteful number, since it uses less digits than its factorization.

2210222112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2210222112021 its reverse (1202112220122), we get a palindrome (3412334332143).

The spelling of 2210222112021 in words is "two trillion, two hundred ten billion, two hundred twenty-two million, one hundred twelve thousand, twenty-one".