1220201022 has 32 divisors (see below), whose sum is σ = 2513700000. Its totient is φ = 394581888.

The previous prime is 1220200997. The next prime is 1220201023. The reversal of 1220201022 is 2201020221.

It is a junction number, because it is equal to n+sod(n) for n = 1220200989 and 1220201007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69604 + ... + 85352.

It is an arithmetic number, because the mean of its divisors is an integer number (78553125).

Almost surely, 2^1220201022 is an apocalyptic number.

1220201022 is an abundant number, since it is smaller than the sum of its proper divisors (1293498978).

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

1220201022 is a wasteful number, since it uses less digits than its factorization.

1220201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1220201022 is about 34931.3758961768. The cubic root of 1220201022 is about 1068.5884148994.

Adding to 1220201022 its reverse (2201020221), we get a palindrome (3421221243).

The spelling of 1220201022 in words is "one billion, two hundred twenty million, two hundred one thousand, twenty-two".