1021222202 has 32 divisors (see below), whose sum is σ = 2056731264. Its totient is φ = 367272000.

The previous prime is 1021222187. The next prime is 1021222207. The reversal of 1021222202 is 2022221201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1021222207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253049 + ... + 257052.

It is an arithmetic number, because the mean of its divisors is an integer number (64272852).

Almost surely, 2^1021222202 is an apocalyptic number.

1021222202 is an abundant number, since it is smaller than the sum of its proper divisors (1035509062).

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

1021222202 is a wasteful number, since it uses less digits than its factorization.

1021222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510134.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1021222202 is about 31956.5674314373. The cubic root of 1021222202 is about 1007.0246066909.

Adding to 1021222202 its reverse (2022221201), we get a palindrome (3043443403).

It can be divided in two parts, 10 and 21222202, that added together give a palindrome (21222212).

The spelling of 1021222202 in words is "one billion, twenty-one million, two hundred twenty-two thousand, two hundred two".