121011122102210 has 48 divisors (see below), whose sum is σ = 231396975771624. Its totient is φ = 45555098185728.

The previous prime is 121011122102203. The next prime is 121011122102219. The reversal of 121011122102210 is 12201221110121.

It can be written as a sum of positive squares in 12 ways, for example, as 8915521176769 + 112095600925441 = 2985887^2 + 10587521^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (121011122102219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64730522 + ... + 66573738.

Almost surely, 2^{121011122102210} is an apocalyptic number.

121011122102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121011122102210 is a deficient number, since it is larger than the sum of its proper divisors (110385853669414).

121011122102210 is a wasteful number, since it uses less digits than its factorization.

121011122102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865975 (or 1865958 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121011122102210 its reverse (12201221110121), we get a palindrome (133212343212331).

The spelling of 121011122102210 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred two thousand, two hundred ten".