1022120100221 has 8 divisors (see below), whose sum is σ = 1119705552000. Its totient is φ = 925312222240.

The previous prime is 1022120100217. The next prime is 1022120100251. The reversal of 1022120100221 is 1220010212201.

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 1022120100221 - 2² = 1022120100217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022120100196 and 1022120100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022120100251) 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, 194390696 + ... + 194395953.

It is an arithmetic number, because the mean of its divisors is an integer number (139963194000).

Almost surely, 2^{1022120100221} is an apocalyptic number.

1022120100221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022120100221 is a deficient number, since it is larger than the sum of its proper divisors (97585451779).

1022120100221 is a wasteful number, since it uses less digits than its factorization.

1022120100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388786899.

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

Adding to 1022120100221 its reverse (1220010212201), we get a palindrome (2242130312422).

The spelling of 1022120100221 in words is "one trillion, twenty-two billion, one hundred twenty million, one hundred thousand, two hundred twenty-one".