121100210022 has 192 divisors, whose sum is σ = 290322869760. Its totient is φ = 33514736640.

The previous prime is 121100210017. The next prime is 121100210053. The reversal of 121100210022 is 220012001121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 91811479 + ... + 91812797.

It is an arithmetic number, because the mean of its divisors is an integer number (1512098280).

Almost surely, 2^121100210022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121100210022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145161434880).

121100210022 is an abundant number, since it is smaller than the sum of its proper divisors (169222659738).

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

121100210022 is a wasteful number, since it uses less digits than its factorization.

121100210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121100210022 its reverse (220012001121), we get a palindrome (341112211143).

The spelling of 121100210022 in words is "one hundred twenty-one billion, one hundred million, two hundred ten thousand, twenty-two".