1022011121 has 8 divisors (see below), whose sum is σ = 1088764320. Its totient is φ = 956554272.

The previous prime is 1022011103. The next prime is 1022011153. The reversal of 1022011121 is 1211102201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022011121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022011181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322460 + ... + 325613.

It is an arithmetic number, because the mean of its divisors is an integer number (136095540).

Almost surely, 2^1022011121 is an apocalyptic number.

It is an amenable number.

1022011121 is a deficient number, since it is larger than the sum of its proper divisors (66753199).

1022011121 is an equidigital number, since it uses as much as digits as its factorization.

1022011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648175.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1022011121 is about 31968.9086613854. The cubic root of 1022011121 is about 1007.2838569473.

Adding to 1022011121 its reverse (1211102201), we get a palindrome (2233113322).

The spelling of 1022011121 in words is "one billion, twenty-two million, eleven thousand, one hundred twenty-one".