1022010120221 has 4 divisors (see below), whose sum is σ = 1022801763744. Its totient is φ = 1021218476700.

The previous prime is 1022010120199. The next prime is 1022010120253. The reversal of 1022010120221 is 1220210102201.

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 1022010120221 - 2²⁶ = 1021943011357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022010120196 and 1022010120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022010120721) 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, 395819825 + ... + 395822406.

It is an arithmetic number, because the mean of its divisors is an integer number (255700440936).

Almost surely, 2^{1022010120221} is an apocalyptic number.

It is an amenable number.

1022010120221 is a deficient number, since it is larger than the sum of its proper divisors (791643523).

1022010120221 is an equidigital number, since it uses as much as digits as its factorization.

1022010120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791643522.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1022010120221 its reverse (1220210102201), we get a palindrome (2242220222422).

The spelling of 1022010120221 in words is "one trillion, twenty-two billion, ten million, one hundred twenty thousand, two hundred twenty-one".