1023222010221 has 18 divisors (see below), whose sum is σ = 1570041927402. Its totient is φ = 642021651840.

The previous prime is 1023222010219. The next prime is 1023222010231. The reversal of 1023222010221 is 1220102223201.

1023222010221 is a `hidden beast` number, since 10 + 232 + 2 + 201 + 0 + 221 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 757161022500 + 266060987721 = 870150^2 + 515811^2 .

It is not a de Polignac number, because 1023222010221 - 2¹ = 1023222010219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023222010194 and 1023222010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023222010231) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 196695210 + ... + 196700411.

Almost surely, 2^{1023222010221} is an apocalyptic number.

It is an amenable number.

1023222010221 is a deficient number, since it is larger than the sum of its proper divisors (546819917181).

1023222010221 is a wasteful number, since it uses less digits than its factorization.

1023222010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393395661 (or 393395641 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1023222010221 its reverse (1220102223201), we get a palindrome (2243324233422).

The spelling of 1023222010221 in words is "one trillion, twenty-three billion, two hundred twenty-two million, ten thousand, two hundred twenty-one".