102213120021 has 8 divisors (see below), whose sum is σ = 136639994880. Its totient is φ = 67964162592.

The previous prime is 102213120019. The next prime is 102213120049. The reversal of 102213120021 is 120021312201.

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

It is not a de Polignac number, because 102213120021 - 2¹ = 102213120019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213120091) 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, 44478016 + ... + 44480313.

It is an arithmetic number, because the mean of its divisors is an integer number (17079999360).

Almost surely, 2^102213120021 is an apocalyptic number.

It is an amenable number.

102213120021 is a deficient number, since it is larger than the sum of its proper divisors (34426874859).

102213120021 is an equidigital number, since it uses as much as digits as its factorization.

102213120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88958715.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102213120021 its reverse (120021312201), we get a palindrome (222234432222).

The spelling of 102213120021 in words is "one hundred two billion, two hundred thirteen million, one hundred twenty thousand, twenty-one".