102001000021121 has 8 divisors (see below), whose sum is σ = 105359153593344. Its totient is φ = 98647083869760.

The previous prime is 102001000021031. The next prime is 102001000021187. The reversal of 102001000021121 is 121120000100201.

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

It is a cyclic number.

It is not a de Polignac number, because 102001000021121 - 2⁴⁶ = 31632255843457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102001000023121) 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, 1059306281 + ... + 1059402566.

It is an arithmetic number, because the mean of its divisors is an integer number (13169894199168).

Almost surely, 2^{102001000021121} is an apocalyptic number.

It is an amenable number.

102001000021121 is a deficient number, since it is larger than the sum of its proper divisors (3358153572223).

102001000021121 is a wasteful number, since it uses less digits than its factorization.

102001000021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118710431.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102001000021121 its reverse (121120000100201), we get a palindrome (223121000121322).

The spelling of 102001000021121 in words is "one hundred two trillion, one billion, twenty-one thousand, one hundred twenty-one".