221022101210012 has 24 divisors (see below), whose sum is σ = 407171423186640. Its totient is φ = 104688135936000.

The previous prime is 221022101210011. The next prime is 221022101210017. The reversal of 221022101210012 is 210012101220122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022101210011) 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, 89659043 + ... + 92091194.

It is an arithmetic number, because the mean of its divisors is an integer number (16965475966110).

Almost surely, 2^{221022101210012} is an apocalyptic number.

It is an amenable number.

221022101210012 is a deficient number, since it is larger than the sum of its proper divisors (186149321976628).

221022101210012 is a wasteful number, since it uses less digits than its factorization.

221022101210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181766261 (or 181766259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221022101210012 its reverse (210012101220122), we get a palindrome (431034202430134).

The spelling of 221022101210012 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred one million, two hundred ten thousand, twelve".