2222011212121 has 8 divisors (see below), whose sum is σ = 2222606490624. Its totient is φ = 2221416022560.

The previous prime is 2222011212049. The next prime is 2222011212193. The reversal of 2222011212121 is 1212121102222.

It is an interprime number because it is at equal distance from previous prime (2222011212049) and next prime (2222011212193).

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-2222011212121 is a prime.

It is a super-3 number, since 3×2222011212121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222011212221) 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, 100847376 + ... + 100869406.

It is an arithmetic number, because the mean of its divisors is an integer number (277825811328).

Almost surely, 2^{2222011212121} is an apocalyptic number.

It is an amenable number.

2222011212121 is a deficient number, since it is larger than the sum of its proper divisors (595278503).

2222011212121 is a wasteful number, since it uses less digits than its factorization.

2222011212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44471.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2222011212121 its reverse (1212121102222), we get a palindrome (3434132314343).

The spelling of 2222011212121 in words is "two trillion, two hundred twenty-two billion, eleven million, two hundred twelve thousand, one hundred twenty-one".