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102222202221212 = 2299725632447899
BaseRepresentation
bin10111001111100001110110…
…000011010011001010011100
3111101221100101000211202120112
4113033201312003103022130
5101344302032232034322
61001224121552305152
730350211315311243
oct2717416603231234
9441840330752515
10102222202221212
112a631213254607
12b56b4208421b8
134506687702788
141b3581c32395a
15bc4079e975e2
hex5cf8760d329c

102222202221212 has 12 divisors (see below), whose sum is σ = 179068281029400. Its totient is φ = 51059836212816.

The previous prime is 102222202221211. The next prime is 102222202221257. The reversal of 102222202221212 is 212122202222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222202221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12816219962 + ... + 12816227937.

It is an arithmetic number, because the mean of its divisors is an integer number (14922356752450).

Almost surely, 2102222202221212 is an apocalyptic number.

It is an amenable number.

102222202221212 is a deficient number, since it is larger than the sum of its proper divisors (76846078808188).

102222202221212 is a wasteful number, since it uses less digits than its factorization.

102222202221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25632448900 (or 25632448898 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 102222202221212 its reverse (212122202222201), we get a palindrome (314344404443413).

The spelling of 102222202221212 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 997 1994 3988 25632447899 51264895798 102529791596 25555550555303 51111101110606 102222202221212