1022201201 has 6 divisors (see below), whose sum is σ = 1189091250. Its totient is φ = 876172416.

The previous prime is 1022201179. The next prime is 1022201209. The reversal of 1022201201 is 1021022201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 692742400 + 329458801 = 26320^2 + 18151^2 .

It is not a de Polignac number, because 1022201201 - 2²⁶ = 955092337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022201209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10430576 + ... + 10430673.

It is an arithmetic number, because the mean of its divisors is an integer number (198181875).

Almost surely, 2^1022201201 is an apocalyptic number.

It is an amenable number.

1022201201 is a deficient number, since it is larger than the sum of its proper divisors (166890049).

1022201201 is an equidigital number, since it uses as much as digits as its factorization.

1022201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20861263 (or 20861256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1022201201 is about 31971.8814116404. The cubic root of 1022201201 is about 1007.3463000535.

Adding to 1022201201 its reverse (1021022201), we get a palindrome (2043223402).

The spelling of 1022201201 in words is "one billion, twenty-two million, two hundred one thousand, two hundred one".