1102210211221 has 16 divisors (see below), whose sum is σ = 1261261872640. Its totient is φ = 943557588720.

The previous prime is 1102210211173. The next prime is 1102210211261. The reversal of 1102210211221 is 1221120122011.

It is a cyclic number.

It is not a de Polignac number, because 1102210211221 - 2²¹ = 1102208114069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102210211195 and 1102210211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102210211261) 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, 17952586 + ... + 18013876.

It is an arithmetic number, because the mean of its divisors is an integer number (78828867040).

Almost surely, 2^{1102210211221} is an apocalyptic number.

It is an amenable number.

1102210211221 is a deficient number, since it is larger than the sum of its proper divisors (159051661419).

1102210211221 is a wasteful number, since it uses less digits than its factorization.

1102210211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64504.

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

Adding to 1102210211221 its reverse (1221120122011), we get a palindrome (2323330333232).

The spelling of 1102210211221 in words is "one trillion, one hundred two billion, two hundred ten million, two hundred eleven thousand, two hundred twenty-one".