2221222220101 has 4 divisors (see below), whose sum is σ = 2258870054400. Its totient is φ = 2183574385804.

The previous prime is 2221222220051. The next prime is 2221222220131. The reversal of 2221222220101 is 1010222221222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2221222220101 - 2⁷ = 2221222219973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221222220131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18823917061 + ... + 18823917178.

It is an arithmetic number, because the mean of its divisors is an integer number (564717513600).

Almost surely, 2^{2221222220101} is an apocalyptic number.

It is an amenable number.

2221222220101 is a deficient number, since it is larger than the sum of its proper divisors (37647834299).

2221222220101 is an equidigital number, since it uses as much as digits as its factorization.

2221222220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37647834298.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221222220101 its reverse (1010222221222), we get a palindrome (3231444441323).

The spelling of 2221222220101 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred one".