1102122121 has 16 divisors (see below), whose sum is σ = 1216664064. Its totient is φ = 994017024.

The previous prime is 1102122103. The next prime is 1102122163. The reversal of 1102122121 is 1212212011.

It is a cyclic number.

It is not a de Polignac number, because 1102122121 - 2⁵ = 1102122089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102122221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24520 + ... + 52966.

It is an arithmetic number, because the mean of its divisors is an integer number (76041504).

Almost surely, 2^1102122121 is an apocalyptic number.

It is an amenable number.

1102122121 is a deficient number, since it is larger than the sum of its proper divisors (114541943).

1102122121 is a wasteful number, since it uses less digits than its factorization.

1102122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28560.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1102122121 is about 33198.2246663884. The cubic root of 1102122121 is about 1032.9435142749.

Adding to 1102122121 its reverse (1212212011), we get a palindrome (2314334132).

The spelling of 1102122121 in words is "one billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-one".