102011210205 has 8 divisors (see below), whose sum is σ = 163217936352. Its totient is φ = 54405978768.

The previous prime is 102011210201. The next prime is 102011210233. The reversal of 102011210205 is 502012110201.

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

It is not a de Polignac number, because 102011210205 - 2² = 102011210201 is a prime.

It is a super-2 number, since 2×102011210205² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6800747347 = 102011210205 / (1 + 0 + 2 + 0 + 1 + 1 + 2 + 1 + 0 + 2 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011210201) 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, 3400373659 + ... + 3400373688.

It is an arithmetic number, because the mean of its divisors is an integer number (20402242044).

Almost surely, 2^102011210205 is an apocalyptic number.

102011210205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102011210205 is a deficient number, since it is larger than the sum of its proper divisors (61206726147).

102011210205 is an equidigital number, since it uses as much as digits as its factorization.

102011210205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800747355.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 102011210205 its reverse (502012110201), we get a palindrome (604023320406).

The spelling of 102011210205 in words is "one hundred two billion, eleven million, two hundred ten thousand, two hundred five".