121211010122202 has 192 divisors, whose sum is σ = 362143953609984. Its totient is φ = 28276132561920.

The previous prime is 121211010122171. The next prime is 121211010122219. The reversal of 121211010122202 is 202221010112121.

121211010122202 is a `hidden beast` number, since 121 + 211 + 0 + 10 + 122 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 90241683 + ... + 91575014.

It is an arithmetic number, because the mean of its divisors is an integer number (1886166425052).

Almost surely, 2^{121211010122202} is an apocalyptic number.

121211010122202 is an abundant number, since it is smaller than the sum of its proper divisors (240932943487782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121211010122202 is a wasteful number, since it uses less digits than its factorization.

121211010122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181816773 (or 181816770 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121211010122202 its reverse (202221010112121), we get a palindrome (323432020234323).

The spelling of 121211010122202 in words is "one hundred twenty-one trillion, two hundred eleven billion, ten million, one hundred twenty-two thousand, two hundred two".