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101210211212 = 221117135307769
BaseRepresentation
bin101111001000010011…
…0010100001110001100
3100200020111212102221012
41132100212110032030
53124234303224322
6114254554024352
710212040413035
oct1362046241614
9320214772835
10101210211212
1139a17586760
12177471180b8
13970c46a956
144c81a8ba8c
1529755e0ae2
hex179099438c

101210211212 has 24 divisors (see below), whose sum is σ = 204585348240. Its totient is φ = 43298485760.

The previous prime is 101210211211. The next prime is 101210211247. The reversal of 101210211212 is 212112012101.

101210211212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (101210211211) 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, 67653137 + ... + 67654632.

It is an arithmetic number, because the mean of its divisors is an integer number (8524389510).

Almost surely, 2101210211212 is an apocalyptic number.

It is an amenable number.

101210211212 is an abundant number, since it is smaller than the sum of its proper divisors (103375137028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101210211212 is a wasteful number, since it uses less digits than its factorization.

101210211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135307801 (or 135307799 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101210211212 its reverse (212112012101), we get a palindrome (313322223313).

The spelling of 101210211212 in words is "one hundred one billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 135307769 270615538 541231076 1488385459 2300232073 2976770918 4600464146 5953541836 9200928292 25302552803 50605105606 101210211212