10120212002121 has 16 divisors (see below), whose sum is σ = 14531693022336. Its totient is φ = 6227777102976.

The previous prime is 10120212002099. The next prime is 10120212002179. The reversal of 10120212002121 is 12120021202101.

It is not a de Polignac number, because 10120212002121 - 2⁶ = 10120212002057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10120212002121.

It is not an unprimeable number, because it can be changed into a prime (10120412002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4889181 + ... + 6644133.

It is an arithmetic number, because the mean of its divisors is an integer number (908230813896).

Almost surely, 2^{10120212002121} is an apocalyptic number.

It is an amenable number.

10120212002121 is a deficient number, since it is larger than the sum of its proper divisors (4411481020215).

10120212002121 is a wasteful number, since it uses less digits than its factorization.

10120212002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902832.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10120212002121 its reverse (12120021202101), we get a palindrome (22240233204222).

The spelling of 10120212002121 in words is "ten trillion, one hundred twenty billion, two hundred twelve million, two thousand, one hundred twenty-one".