121222100102 has 16 divisors (see below), whose sum is σ = 182148770400. Its totient is φ = 60505885440.

The previous prime is 121222100099. The next prime is 121222100147. The reversal of 121222100102 is 201001222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8822774 + ... + 8836502.

It is an arithmetic number, because the mean of its divisors is an integer number (11384298150).

Almost surely, 2^121222100102 is an apocalyptic number.

121222100102 is a deficient number, since it is larger than the sum of its proper divisors (60926670298).

121222100102 is a wasteful number, since it uses less digits than its factorization.

121222100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121222100102 its reverse (201001222121), we get a palindrome (322223322223).

The spelling of 121222100102 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, one hundred two".