1022101220221 has 8 divisors (see below), whose sum is σ = 1030088793888. Its totient is φ = 1014116454000.

The previous prime is 1022101220209. The next prime is 1022101220233. The reversal of 1022101220221 is 1220221012201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1022101220209) and next prime (1022101220233).

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 1022101220221 - 2⁹ = 1022101219709 is a prime.

It is a super-3 number, since 3×1022101220221³ (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 = 1022101220195 and 1022101220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022101220521) 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, 32106 + ... + 1430116.

It is an arithmetic number, because the mean of its divisors is an integer number (128761099236).

Almost surely, 2^{1022101220221} is an apocalyptic number.

It is an amenable number.

1022101220221 is a deficient number, since it is larger than the sum of its proper divisors (7987573667).

1022101220221 is a wasteful number, since it uses less digits than its factorization.

1022101220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403723.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1022101220221 its reverse (1220221012201), we get a palindrome (2242322232422).

The spelling of 1022101220221 in words is "one trillion, twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred twenty-one".