12222210012021 has 12 divisors (see below), whose sum is σ = 18583477211520. Its totient is φ = 7719290533800.

The previous prime is 12222210011993. The next prime is 12222210012029. The reversal of 12222210012021 is 12021001222221.

It is a happy number.

It is not a de Polignac number, because 12222210012021 - 2³⁰ = 12221136270197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12222210011985 and 12222210012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222210012029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35737456005 + ... + 35737456346.

It is an arithmetic number, because the mean of its divisors is an integer number (1548623100960).

Almost surely, 2^{12222210012021} is an apocalyptic number.

It is an amenable number.

12222210012021 is a deficient number, since it is larger than the sum of its proper divisors (6361267199499).

12222210012021 is a wasteful number, since it uses less digits than its factorization.

12222210012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71474912376 (or 71474912373 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12222210012021 its reverse (12021001222221), we get a palindrome (24243211234242).

The spelling of 12222210012021 in words is "twelve trillion, two hundred twenty-two billion, two hundred ten million, twelve thousand, twenty-one".