102111011220001 has 16 divisors (see below), whose sum is σ = 118077299233920. Its totient is φ = 86490603112320.

The previous prime is 102111011219983. The next prime is 102111011220059. The reversal of 102111011220001 is 100022110111201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102111011220001 - 2⁵ = 102111011219969 is a prime.

It is a super-2 number, since 2×102111011220001² (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 (102111011220301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45986611 + ... + 48155896.

It is an arithmetic number, because the mean of its divisors is an integer number (7379831202120).

Almost surely, 2^{102111011220001} is an apocalyptic number.

It is an amenable number.

102111011220001 is a deficient number, since it is larger than the sum of its proper divisors (15966288013919).

102111011220001 is an equidigital number, since it uses as much as digits as its factorization.

102111011220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94144344.

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

Adding to 102111011220001 its reverse (100022110111201), we get a palindrome (202133121331202).

The spelling of 102111011220001 in words is "one hundred two trillion, one hundred eleven billion, eleven million, two hundred twenty thousand, one".