10120221202121 has 8 divisors (see below), whose sum is σ = 10130716557504. Its totient is φ = 10109726255440.

The previous prime is 10120221202073. The next prime is 10120221202159. The reversal of 10120221202121 is 12120212202101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10120221202121 - 2⁶ = 10120221202057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10120221202121.

It is not an unprimeable number, because it can be changed into a prime (10120221202171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93351470 + ... + 93459816.

It is an arithmetic number, because the mean of its divisors is an integer number (1266339569688).

Almost surely, 2^{10120221202121} is an apocalyptic number.

It is an amenable number.

10120221202121 is a deficient number, since it is larger than the sum of its proper divisors (10495355383).

10120221202121 is an equidigital number, since it uses as much as digits as its factorization.

10120221202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204351.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10120221202121 its reverse (12120212202101), we get a palindrome (22240433404222).

The spelling of 10120221202121 in words is "ten trillion, one hundred twenty billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-one".