121102211002120 has 32 divisors (see below), whose sum is σ = 273076211064600. Its totient is φ = 48334886834688.

The previous prime is 121102211002049. The next prime is 121102211002153. The reversal of 121102211002120 is 21200112201121.

It can be written as a sum of positive squares in 4 ways, for example, as 121083218303524 + 18992698596 = 11003782^2 + 137814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121102211002094 and 121102211002103.

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, 3312405435 + ... + 3312441994.

Almost surely, 2^{121102211002120} is an apocalyptic number.

121102211002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102211002120 is an abundant number, since it is smaller than the sum of its proper divisors (151974000062480).

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

121102211002120 is a wasteful number, since it uses less digits than its factorization.

121102211002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624847897 (or 6624847893 counting only the distinct ones).

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

Adding to 121102211002120 its reverse (21200112201121), we get a palindrome (142302323203241).

The spelling of 121102211002120 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, two thousand, one hundred twenty".