10222222220221 has 8 divisors (see below), whose sum is σ = 11152066546944. Its totient is φ = 9292469793120.

The previous prime is 10222222220209. The next prime is 10222222220227. The reversal of 10222222220221 is 12202222222201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10222222220221 - 2²¹ = 10222220123069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10222222220192 and 10222222220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222222220227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22742221 + ... + 23187346.

It is an arithmetic number, because the mean of its divisors is an integer number (1394008318368).

Almost surely, 2^{10222222220221} is an apocalyptic number.

10222222220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10222222220221 is a deficient number, since it is larger than the sum of its proper divisors (929844326723).

10222222220221 is a wasteful number, since it uses less digits than its factorization.

10222222220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45949811.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 10222222220221 its reverse (12202222222201), we get a palindrome (22424444442422).

The spelling of 10222222220221 in words is "ten trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".