102120210202211 has 4 divisors (see below), whose sum is σ = 102120491873400. Its totient is φ = 102119928531024.

The previous prime is 102120210202207. The next prime is 102120210202229. The reversal of 102120210202211 is 112202012021201.

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

It is a cyclic number.

It is not a de Polignac number, because 102120210202211 - 2² = 102120210202207 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 102120210202211.

It is not an unprimeable number, because it can be changed into a prime (102120210202711) 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, 140291066 + ... + 141017103.

It is an arithmetic number, because the mean of its divisors is an integer number (25530122968350).

Almost surely, 2^{102120210202211} is an apocalyptic number.

102120210202211 is a deficient number, since it is larger than the sum of its proper divisors (281671189).

102120210202211 is an equidigital number, since it uses as much as digits as its factorization.

102120210202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281671188.

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

Adding to 102120210202211 its reverse (112202012021201), we get a palindrome (214322222223412).

The spelling of 102120210202211 in words is "one hundred two trillion, one hundred twenty billion, two hundred ten million, two hundred two thousand, two hundred eleven".