102021211 has 8 divisors (see below), whose sum is σ = 103680144. Its totient is φ = 100375200.

The previous prime is 102021197. The next prime is 102021251. The reversal of 102021211 is 112120201.

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 102021211 - 2⁷ = 102021083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13365 + ... + 19561.

It is an arithmetic number, because the mean of its divisors is an integer number (12960018).

Almost surely, 2^102021211 is an apocalyptic number.

102021211 is a deficient number, since it is larger than the sum of its proper divisors (1658933).

102021211 is a wasteful number, since it uses less digits than its factorization.

102021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 102021211 is about 10100.5549847521. The cubic root of 102021211 is about 467.2652577688.

Adding to 102021211 its reverse (112120201), we get a palindrome (214141412).

The spelling of 102021211 in words is "one hundred two million, twenty-one thousand, two hundred eleven".