102111122021001 has 8 divisors (see below), whose sum is σ = 136148232407520. Its totient is φ = 68074046490912.

The previous prime is 102111122020997. The next prime is 102111122021011. The reversal of 102111122021001 is 100120221111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102111122021001 - 2² = 102111122020997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102111122021011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869931 + ... + 14317088.

It is an arithmetic number, because the mean of its divisors is an integer number (17018529050940).

Almost surely, 2^{102111122021001} is an apocalyptic number.

It is an amenable number.

102111122021001 is a deficient number, since it is larger than the sum of its proper divisors (34037110386519).

102111122021001 is a wasteful number, since it uses less digits than its factorization.

102111122021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17428215.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102111122021001 its reverse (100120221111201), we get a palindrome (202231343132202).

The spelling of 102111122021001 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-two million, twenty-one thousand, one".