2102212321201 has 4 divisors (see below), whose sum is σ = 2102219638272. Its totient is φ = 2102205004132.

The previous prime is 2102212321159. The next prime is 2102212321217. The reversal of 2102212321201 is 1021232122012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102212321201 - 2²³ = 2102203932593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102212321241) 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, 3209185 + ... + 3808318.

It is an arithmetic number, because the mean of its divisors is an integer number (525554909568).

Almost surely, 2^{2102212321201} is an apocalyptic number.

It is an amenable number.

2102212321201 is a deficient number, since it is larger than the sum of its proper divisors (7317071).

2102212321201 is an equidigital number, since it uses as much as digits as its factorization.

2102212321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317070.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2102212321201 its reverse (1021232122012), we get a palindrome (3123444443213).

The spelling of 2102212321201 in words is "two trillion, one hundred two billion, two hundred twelve million, three hundred twenty-one thousand, two hundred one".