102021220001211 has 64 divisors (see below), whose sum is σ = 160439508519936. Its totient is φ = 56446267046400.

The previous prime is 102021220001191. The next prime is 102021220001231. The reversal of 102021220001211 is 112100022120201.

It is an interprime number because it is at equal distance from previous prime (102021220001191) and next prime (102021220001231).

It is not a de Polignac number, because 102021220001211 - 2⁷ = 102021220001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021220001231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1464503721 + ... + 1464573381.

It is an arithmetic number, because the mean of its divisors is an integer number (2506867320624).

Almost surely, 2^{102021220001211} is an apocalyptic number.

102021220001211 is a deficient number, since it is larger than the sum of its proper divisors (58418288518725).

102021220001211 is a wasteful number, since it uses less digits than its factorization.

102021220001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78852.

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

Adding to 102021220001211 its reverse (112100022120201), we get a palindrome (214121242121412).

The spelling of 102021220001211 in words is "one hundred two trillion, twenty-one billion, two hundred twenty million, one thousand, two hundred eleven".