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2210102221212 = 223261391728367
BaseRepresentation
bin100000001010010100010…
…110111001100110011100
321211021122211020112201200
4200022110112321212130
5242202242132034322
64411150144435500
7315450251630034
oct40122426714634
97737584215650
102210102221212
117823320a5336
122b83ba918b90
131305477b1522
1478d805028c4
153c7532a28ac
hex202945b999c

2210102221212 has 18 divisors (see below), whose sum is σ = 5586647281488. Its totient is φ = 736700740392.

The previous prime is 2210102221207. The next prime is 2210102221259. The reversal of 2210102221212 is 2121222010122.

It is a happy number.

2210102221212 is a `hidden beast` number, since 221 + 0 + 10 + 2 + 221 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30695864148 + ... + 30695864219.

It is an arithmetic number, because the mean of its divisors is an integer number (310369293416).

Almost surely, 22210102221212 is an apocalyptic number.

It is an amenable number.

2210102221212 is an abundant number, since it is smaller than the sum of its proper divisors (3376545060276).

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

2210102221212 is a wasteful number, since it uses less digits than its factorization.

2210102221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61391728377 (or 61391728372 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2210102221212 its reverse (2121222010122), we get a palindrome (4331324231334).

The spelling of 2210102221212 in words is "two trillion, two hundred ten billion, one hundred two million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 61391728367 122783456734 184175185101 245566913468 368350370202 552525555303 736700740404 1105051110606 2210102221212