121222222102 has 8 divisors (see below), whose sum is σ = 183501529200. Its totient is φ = 60055045704.

The previous prime is 121222222073. The next prime is 121222222103. The reversal of 121222222102 is 201222222121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121222222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222222103) 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, 278032402 + ... + 278032837.

It is an arithmetic number, because the mean of its divisors is an integer number (22937691150).

Almost surely, 2^121222222102 is an apocalyptic number.

121222222102 is a deficient number, since it is larger than the sum of its proper divisors (62279307098).

121222222102 is a wasteful number, since it uses less digits than its factorization.

121222222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556065350.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121222222102 its sum of digits (19), we get a palindrome (121222222121).

Adding to 121222222102 its reverse (201222222121), we get a palindrome (322444444223).

It can be divided in two parts, 12122222 and 2102, that added together give a square (12124324 = 3482²).

The spelling of 121222222102 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred two".