102212001 has 24 divisors (see below), whose sum is σ = 156580320. Its totient is φ = 64069056.

The previous prime is 102211999. The next prime is 102212009. The reversal of 102212001 is 100212201.

It is not a de Polignac number, because 102212001 - 2¹ = 102211999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (102212009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21246 + ... + 25608.

It is an arithmetic number, because the mean of its divisors is an integer number (6524180).

Almost surely, 2^102212001 is an apocalyptic number.

It is an amenable number.

102212001 is a deficient number, since it is larger than the sum of its proper divisors (54368319).

102212001 is a wasteful number, since it uses less digits than its factorization.

102212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102212001 is about 10109.9951038564. The cubic root of 102212001 is about 467.5563541739.

Adding to 102212001 its reverse (100212201), we get a palindrome (202424202).

The spelling of 102212001 in words is "one hundred two million, two hundred twelve thousand, one".