121111100220202 has 16 divisors (see below), whose sum is σ = 189604800689472. Its totient is φ = 57910600000000.

The previous prime is 121111100220163. The next prime is 121111100220211. The reversal of 121111100220202 is 202022001111121.

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, 274779799 + ... + 275220202.

It is an arithmetic number, because the mean of its divisors is an integer number (11850300043092).

Almost surely, 2^{121111100220202} is an apocalyptic number.

121111100220202 is a deficient number, since it is larger than the sum of its proper divisors (68493700469270).

121111100220202 is a wasteful number, since it uses less digits than its factorization.

121111100220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550004813.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121111100220202 its reverse (202022001111121), we get a palindrome (323133101331323).

The spelling of 121111100220202 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred million, two hundred twenty thousand, two hundred two".