2201212002121 has 8 divisors (see below), whose sum is σ = 2401486462944. Its totient is φ = 2000964921120.

The previous prime is 2201212002083. The next prime is 2201212002127. The reversal of 2201212002121 is 1212002121022.

It is a happy number.

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

It is not a de Polignac number, because 2201212002121 - 2²³ = 2201203613513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201212002095 and 2201212002104.

It is not an unprimeable number, because it can be changed into a prime (2201212002127) 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 7 ways as a sum of consecutive naturals, for example, 6676671 + ... + 6998596.

It is an arithmetic number, because the mean of its divisors is an integer number (300185807868).

Almost surely, 2^{2201212002121} is an apocalyptic number.

It is an amenable number.

2201212002121 is a deficient number, since it is larger than the sum of its proper divisors (200274460823).

2201212002121 is a wasteful number, since it uses less digits than its factorization.

2201212002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13689911.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2201212002121 its reverse (1212002121022), we get a palindrome (3413214123143).

The spelling of 2201212002121 in words is "two trillion, two hundred one billion, two hundred twelve million, two thousand, one hundred twenty-one".