2002212121123 has 4 divisors (see below), whose sum is σ = 2039989708368. Its totient is φ = 1964434533880.

The previous prime is 2002212121121. The next prime is 2002212121219. The reversal of 2002212121123 is 3211212122002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002212121123 - 2¹ = 2002212121121 is a prime.

It is a super-2 number, since 2×2002212121123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002212121123.

It is not an unprimeable number, because it can be changed into a prime (2002212121121) 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, 18888793543 + ... + 18888793648.

It is an arithmetic number, because the mean of its divisors is an integer number (509997427092).

Almost surely, 2^{2002212121123} is an apocalyptic number.

2002212121123 is a deficient number, since it is larger than the sum of its proper divisors (37777587245).

2002212121123 is an equidigital number, since it uses as much as digits as its factorization.

2002212121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37777587244.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2002212121123 its reverse (3211212122002), we get a palindrome (5213424243125).

The spelling of 2002212121123 in words is "two trillion, two billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-three".