22121001220102 has 32 divisors (see below), whose sum is σ = 33654979033632. Its totient is φ = 10902847774464.

The previous prime is 22121001220057. The next prime is 22121001220231. The reversal of 22121001220102 is 20102210012122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4038887388 + ... + 4038892864.

It is an arithmetic number, because the mean of its divisors is an integer number (1051718094801).

Almost surely, 2^{22121001220102} is an apocalyptic number.

22121001220102 is a deficient number, since it is larger than the sum of its proper divisors (11533977813530).

22121001220102 is a wasteful number, since it uses less digits than its factorization.

22121001220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16072.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121001220102 its reverse (20102210012122), we get a palindrome (42223211232224).

The spelling of 22121001220102 in words is "twenty-two trillion, one hundred twenty-one billion, one million, two hundred twenty thousand, one hundred two".