1022220001 has 4 divisors (see below), whose sum is σ = 1115149104. Its totient is φ = 929290900.

The previous prime is 1022219999. The next prime is 1022220029. The reversal of 1022220001 is 1000222201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022220001 - 2¹ = 1022219999 is a prime.

It is a super-5 number, since 5×1022220001⁵ (a number of 46 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022220001.

It is not an unprimeable number, because it can be changed into a prime (1022220601) 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 3 ways as a sum of consecutive naturals, for example, 46464535 + ... + 46464556.

It is an arithmetic number, because the mean of its divisors is an integer number (278787276).

Almost surely, 2^1022220001 is an apocalyptic number.

1022220001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022220001 is a deficient number, since it is larger than the sum of its proper divisors (92929103).

1022220001 is an equidigital number, since it uses as much as digits as its factorization.

1022220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92929102.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1022220001 is about 31972.1754186355. The cubic root of 1022220001 is about 1007.3524756134.

Adding to 1022220001 its reverse (1000222201), we get a palindrome (2022442202).

The spelling of 1022220001 in words is "one billion, twenty-two million, two hundred twenty thousand, one".