102011220111001 has 4 divisors (see below), whose sum is σ = 102581115195600. Its totient is φ = 101441325026404.

The previous prime is 102011220110999. The next prime is 102011220111023. The reversal of 102011220111001 is 100111022110201.

It is a happy number.

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 102011220111001 - 2¹ = 102011220110999 is a prime.

It is a super-2 number, since 2×102011220111001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011220111701) 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, 284947542031 + ... + 284947542388.

It is an arithmetic number, because the mean of its divisors is an integer number (25645278798900).

Almost surely, 2^{102011220111001} is an apocalyptic number.

It is an amenable number.

102011220111001 is a deficient number, since it is larger than the sum of its proper divisors (569895084599).

102011220111001 is an equidigital number, since it uses as much as digits as its factorization.

102011220111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569895084598.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102011220111001 its reverse (100111022110201), we get a palindrome (202122242221202).

The spelling of 102011220111001 in words is "one hundred two trillion, eleven billion, two hundred twenty million, one hundred eleven thousand, one".