121221012202222 has 8 divisors (see below), whose sum is σ = 181831587080472. Its totient is φ = 60610483175400.

The previous prime is 121221012202211. The next prime is 121221012202229. The reversal of 121221012202222 is 222202210122121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121221012202193 and 121221012202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221012202229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3839404 + ... + 16036927.

It is an arithmetic number, because the mean of its divisors is an integer number (22728948385059).

Almost surely, 2^{121221012202222} is an apocalyptic number.

121221012202222 is a deficient number, since it is larger than the sum of its proper divisors (60610574878250).

121221012202222 is a wasteful number, since it uses less digits than its factorization.

121221012202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22925714.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121221012202222 its reverse (222202210122121), we get a palindrome (343423222324343).

The spelling of 121221012202222 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twelve million, two hundred two thousand, two hundred twenty-two".