102020101220201 has 4 divisors (see below), whose sum is σ = 103692561896004. Its totient is φ = 100347640544400.

The previous prime is 102020101220183. The next prime is 102020101220209. The reversal of 102020101220201 is 102022101020201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42965717670976 + 59054383549225 = 6554824^2 + 7684685^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020101220201 - 2²² = 102020097025897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020101220209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836230337810 + ... + 836230337931.

It is an arithmetic number, because the mean of its divisors is an integer number (25923140474001).

Almost surely, 2^{102020101220201} is an apocalyptic number.

It is an amenable number.

102020101220201 is a deficient number, since it is larger than the sum of its proper divisors (1672460675803).

102020101220201 is an equidigital number, since it uses as much as digits as its factorization.

102020101220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672460675802.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102020101220201 its reverse (102022101020201), we get a palindrome (204042202240402).

The spelling of 102020101220201 in words is "one hundred two trillion, twenty billion, one hundred one million, two hundred twenty thousand, two hundred one".