102122220202121 has 8 divisors (see below), whose sum is σ = 121785504837504. Its totient is φ = 83727534575520.

The previous prime is 102122220202099. The next prime is 102122220202147. The reversal of 102122220202121 is 121202022221201.

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

It is not a de Polignac number, because 102122220202121 - 2¹⁴ = 102122220185737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102122220202093 and 102122220202102.

It is not an unprimeable number, because it can be changed into a prime (102122220402121) 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, 317149752020 + ... + 317149752341.

It is an arithmetic number, because the mean of its divisors is an integer number (15223188104688).

Almost surely, 2^{102122220202121} is an apocalyptic number.

It is an amenable number.

102122220202121 is a deficient number, since it is larger than the sum of its proper divisors (19663284635383).

102122220202121 is an equidigital number, since it uses as much as digits as its factorization.

102122220202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634299504391.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102122220202121 its reverse (121202022221201), we get a palindrome (223324242423322).

The spelling of 102122220202121 in words is "one hundred two trillion, one hundred twenty-two billion, two hundred twenty million, two hundred two thousand, one hundred twenty-one".