1022100012121 has 4 divisors (see below), whose sum is σ = 1039423741200. Its totient is φ = 1004776283044.

The previous prime is 1022100012113. The next prime is 1022100012169. The reversal of 1022100012121 is 1212100012201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022100012121 - 2³ = 1022100012113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022100012821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8661864451 + ... + 8661864568.

It is an arithmetic number, because the mean of its divisors is an integer number (259855935300).

Almost surely, 2^{1022100012121} is an apocalyptic number.

It is an amenable number.

1022100012121 is a deficient number, since it is larger than the sum of its proper divisors (17323729079).

1022100012121 is an equidigital number, since it uses as much as digits as its factorization.

1022100012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323729078.

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

Adding to 1022100012121 its reverse (1212100012201), we get a palindrome (2234200024322).

The spelling of 1022100012121 in words is "one trillion, twenty-two billion, one hundred million, twelve thousand, one hundred twenty-one".