22211122101021 has 48 divisors (see below), whose sum is σ = 36899233188480. Its totient is φ = 12611363143680.

The previous prime is 22211122101017. The next prime is 22211122101101. The reversal of 22211122101021 is 12010122111222.

It is not a de Polignac number, because 22211122101021 - 2² = 22211122101017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22211122100985 and 22211122101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211122101521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45774045 + ... + 46256733.

It is an arithmetic number, because the mean of its divisors is an integer number (768734024760).

Almost surely, 2^{22211122101021} is an apocalyptic number.

22211122101021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22211122101021 is a deficient number, since it is larger than the sum of its proper divisors (14688111087459).

22211122101021 is a wasteful number, since it uses less digits than its factorization.

22211122101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487346 (or 487343 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22211122101021 its reverse (12010122111222), we get a palindrome (34221244212243).

The spelling of 22211122101021 in words is "twenty-two trillion, two hundred eleven billion, one hundred twenty-two million, one hundred one thousand, twenty-one".