1022201121 has 32 divisors (see below), whose sum is σ = 1506032640.
Its totient is φ = 613825344.
The previous prime is 1022201093. The next prime is 1022201153. The reversal of 1022201121 is 1211022201.
It is not a de Polignac number, because 1022201121 - 215 = 1022168353 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1022201097 and 1022201106.
It is not an unprimeable number, because it can be changed into a prime (1022201171) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224550 + ... + 229056.
It is an arithmetic number, because the mean of its divisors is an integer number (47063520).
Almost surely, 21022201121 is an apocalyptic number.
It is an amenable number.
1022201121 is a deficient number, since it is larger than the sum of its proper divisors (483831519).
1022201121 is a wasteful number, since it uses less digits than its factorization.
1022201121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4725.
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 1022201121 is about 31971.8801605411.
The cubic root of 1022201121 is about 1007.3462737744.
Adding to 1022201121 its reverse (1211022201), we get a palindrome (2233223322).
It can be divided in two parts, 1022201 and 121, that multiplied together give a palindrome (123686321).
The spelling of 1022201121 in words is "one billion, twenty-two million, two hundred one thousand, one hundred twenty-one".