121121222210102 has 16 divisors (see below), whose sum is σ = 185590848402432. Its totient is φ = 59258209467240.

The previous prime is 121121222210101. The next prime is 121121222210111. The reversal of 121121222210102 is 201012222121121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121222210101) 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, 150444188 + ... + 151247135.

It is an arithmetic number, because the mean of its divisors is an integer number (11599428025152).

Almost surely, 2^{121121222210102} is an apocalyptic number.

121121222210102 is a deficient number, since it is larger than the sum of its proper divisors (64469626192330).

121121222210102 is a wasteful number, since it uses less digits than its factorization.

121121222210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301695643.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121121222210102 its reverse (201012222121121), we get a palindrome (322133444331223).

The spelling of 121121222210102 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand, one hundred two".