102020201102121 has 16 divisors (see below), whose sum is σ = 138610320508800. Its totient is φ = 66722086396160.

The previous prime is 102020201102101. The next prime is 102020201102129. The reversal of 102020201102121 is 121201102020201.

It is a cyclic number.

It is not a de Polignac number, because 102020201102121 - 2¹³ = 102020201093929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102020201102121.

It is not an unprimeable number, because it can be changed into a prime (102020201102129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37668096 + ... + 40285553.

It is an arithmetic number, because the mean of its divisors is an integer number (8663145031800).

Almost surely, 2^{102020201102121} is an apocalyptic number.

It is an amenable number.

102020201102121 is a deficient number, since it is larger than the sum of its proper divisors (36590119406679).

102020201102121 is an equidigital number, since it uses as much as digits as its factorization.

102020201102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77961936.

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

Adding to 102020201102121 its reverse (121201102020201), we get a palindrome (223221303122322).

The spelling of 102020201102121 in words is "one hundred two trillion, twenty billion, two hundred one million, one hundred two thousand, one hundred twenty-one".