1031220201222 has 16 divisors (see below), whose sum is σ = 2291600447280. Its totient is φ = 343740067056.

The previous prime is 1031220201199. The next prime is 1031220201293. The reversal of 1031220201222 is 2221020221301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1031220201195 and 1031220201204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9548335143 + ... + 9548335250.

It is an arithmetic number, because the mean of its divisors is an integer number (143225027955).

Almost surely, 2^{1031220201222} is an apocalyptic number.

1031220201222 is an abundant number, since it is smaller than the sum of its proper divisors (1260380246058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031220201222 is a wasteful number, since it uses less digits than its factorization.

1031220201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19096670404 (or 19096670398 counting only the distinct ones).

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

Adding to 1031220201222 its reverse (2221020221301), we get a palindrome (3252240422523).

The spelling of 1031220201222 in words is "one trillion, thirty-one billion, two hundred twenty million, two hundred one thousand, two hundred twenty-two".