2021222103121 has 8 divisors (see below), whose sum is σ = 2176712274240. Its totient is φ = 1865733581712.

The previous prime is 2021222103113. The next prime is 2021222103139. The reversal of 2021222103121 is 1213012221202.

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

It is not a de Polignac number, because 2021222103121 - 2³ = 2021222103113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021222193121) 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, 3523356 + ... + 4056658.

It is an arithmetic number, because the mean of its divisors is an integer number (272089034280).

Almost surely, 2^{2021222103121} is an apocalyptic number.

It is an amenable number.

2021222103121 is a deficient number, since it is larger than the sum of its proper divisors (155490171119).

2021222103121 is a wasteful number, since it uses less digits than its factorization.

2021222103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824855.

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

Adding to 2021222103121 its reverse (1213012221202), we get a palindrome (3234234324323).

The spelling of 2021222103121 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred three thousand, one hundred twenty-one".