121202210020102 has 4 divisors (see below), whose sum is σ = 181803315030156. Its totient is φ = 60601105010050.

The previous prime is 121202210020063. The next prime is 121202210020127. The reversal of 121202210020102 is 201020012202121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300552505024 + ... + 30300552505027.

It is an arithmetic number, because the mean of its divisors is an integer number (45450828757539).

Almost surely, 2^{121202210020102} is an apocalyptic number.

121202210020102 is a deficient number, since it is larger than the sum of its proper divisors (60601105010054).

121202210020102 is an equidigital number, since it uses as much as digits as its factorization.

121202210020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60601105010053.

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

Adding to 121202210020102 its reverse (201020012202121), we get a palindrome (322222222222223).

The spelling of 121202210020102 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred ten million, twenty thousand, one hundred two".