1022201123 has 4 divisors (see below), whose sum is σ = 1023781680. Its totient is φ = 1020620568.

The previous prime is 1022201093. The next prime is 1022201153. The reversal of 1022201123 is 3211022201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211022201 = 461 ⋅6965341.

It is an interprime number because it is at equal distance from previous prime (1022201093) and next prime (1022201153).

It is a cyclic number.

It is not a de Polignac number, because 1022201123 - 2¹⁸ = 1021938979 is a prime.

It is a super-2 number, since 2×1022201123² = 2089790271724922258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022201098 and 1022201107.

It is not an unprimeable number, because it can be changed into a prime (1022201153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789308 + ... + 790601.

It is an arithmetic number, because the mean of its divisors is an integer number (255945420).

Almost surely, 2^1022201123 is an apocalyptic number.

1022201123 is a deficient number, since it is larger than the sum of its proper divisors (1580557).

1022201123 is an equidigital number, since it uses as much as digits as its factorization.

1022201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580556.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1022201123 is about 31971.8801918186. The cubic root of 1022201123 is about 1007.3462744314.

Adding to 1022201123 its reverse (3211022201), we get a palindrome (4233223324).

The spelling of 1022201123 in words is "one billion, twenty-two million, two hundred one thousand, one hundred twenty-three".