1022101110221 has 4 divisors (see below), whose sum is σ = 1022596556352. Its totient is φ = 1021605664092.

The previous prime is 1022101110197. The next prime is 1022101110241. The reversal of 1022101110221 is 1220111012201.

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 a de Polignac number, because none of the positive numbers 2^k-1022101110221 is a prime.

It is a super-3 number, since 3×1022101110221³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022101110196 and 1022101110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022101110241) 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, 247719971 + ... + 247724096.

It is an arithmetic number, because the mean of its divisors is an integer number (255649139088).

Almost surely, 2^{1022101110221} is an apocalyptic number.

It is an amenable number.

1022101110221 is a deficient number, since it is larger than the sum of its proper divisors (495446131).

1022101110221 is an equidigital number, since it uses as much as digits as its factorization.

1022101110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495446130.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1022101110221 its reverse (1220111012201), we get a palindrome (2242212122422).

The spelling of 1022101110221 in words is "one trillion, twenty-two billion, one hundred one million, one hundred ten thousand, two hundred twenty-one".