121122021202102 has 16 divisors (see below), whose sum is σ = 189582572993760. Its totient is φ = 57927837952512.

The previous prime is 121122021202099. The next prime is 121122021202289. The reversal of 121122021202102 is 201202120221121.

It is a self number, because there is not a number n which added to its sum of digits gives 121122021202102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38944288 + ... + 41939260.

It is an arithmetic number, because the mean of its divisors is an integer number (11848910812110).

Almost surely, 2^{121122021202102} is an apocalyptic number.

121122021202102 is a deficient number, since it is larger than the sum of its proper divisors (68460551791658).

121122021202102 is a wasteful number, since it uses less digits than its factorization.

121122021202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874167.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121122021202102 its reverse (201202120221121), we get a palindrome (322324141423223).

The spelling of 121122021202102 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-one million, two hundred two thousand, one hundred two".