102201201210021 has 8 divisors (see below), whose sum is σ = 136268333645184. Its totient is φ = 68134101457440.

The previous prime is 102201201209983. The next prime is 102201201210041. The reversal of 102201201210021 is 120012102102201.

102201201210021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 102201201210021 - 2²² = 102201197015717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201201210041) 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, 414580 + ... + 14302946.

It is an arithmetic number, because the mean of its divisors is an integer number (17033541705648).

Almost surely, 2^{102201201210021} is an apocalyptic number.

It is an amenable number.

102201201210021 is a deficient number, since it is larger than the sum of its proper divisors (34067132435163).

102201201210021 is a wasteful number, since it uses less digits than its factorization.

102201201210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16341291.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102201201210021 its reverse (120012102102201), we get a palindrome (222213303312222).

The spelling of 102201201210021 in words is "one hundred two trillion, two hundred one billion, two hundred one million, two hundred ten thousand, twenty-one".