102021211112001 has 4 divisors (see below), whose sum is σ = 136028281482672. Its totient is φ = 68014140741332.

The previous prime is 102021211111979. The next prime is 102021211112017. The reversal of 102021211112001 is 100211112120201.

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 102021211112001 - 2⁵ = 102021211111969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021211102001) 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, 17003535185331 + ... + 17003535185336.

It is an arithmetic number, because the mean of its divisors is an integer number (34007070370668).

Almost surely, 2^{102021211112001} is an apocalyptic number.

It is an amenable number.

102021211112001 is a deficient number, since it is larger than the sum of its proper divisors (34007070370671).

102021211112001 is an equidigital number, since it uses as much as digits as its factorization.

102021211112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34007070370670.

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

Adding to 102021211112001 its reverse (100211112120201), we get a palindrome (202232323232202).

The spelling of 102021211112001 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred twelve thousand, one".