10222211022221 has 32 divisors (see below), whose sum is σ = 11683650384000. Its totient is φ = 8858172960000.

The previous prime is 10222211022193. The next prime is 10222211022271. The reversal of 10222211022221 is 12222011222201.

It is a de Polignac number, because none of the positive numbers 2^k-10222211022221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10222211022193 and 10222211022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222211022271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10789886 + ... + 11698976.

It is an arithmetic number, because the mean of its divisors is an integer number (365114074500).

Almost surely, 2^{10222211022221} is an apocalyptic number.

10222211022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10222211022221 is a deficient number, since it is larger than the sum of its proper divisors (1461439361779).

10222211022221 is a wasteful number, since it uses less digits than its factorization.

10222211022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909581.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10222211022221 its reverse (12222011222201), we get a palindrome (22444222244422).

The spelling of 10222211022221 in words is "ten trillion, two hundred twenty-two billion, two hundred eleven million, twenty-two thousand, two hundred twenty-one".