2021012222222 has 16 divisors (see below), whose sum is σ = 3465136169952. Its totient is φ = 866012148000.

The previous prime is 2021012222221. The next prime is 2021012222227. The reversal of 2021012222222 is 2222222101202.

It is a junction number, because it is equal to n+sod(n) for n = 2021012222194 and 2021012222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021012222221) 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, 11236529 + ... + 11414972.

It is an arithmetic number, because the mean of its divisors is an integer number (216571010622).

Almost surely, 2^{2021012222222} is an apocalyptic number.

2021012222222 is a deficient number, since it is larger than the sum of its proper divisors (1444123947730).

2021012222222 is a wasteful number, since it uses less digits than its factorization.

2021012222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22657883.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2021012222222 its reverse (2222222101202), we get a palindrome (4243234323424).

The spelling of 2021012222222 in words is "two trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".