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1222101002111 = 11111100091101
BaseRepresentation
bin10001110010001010111…
…001010110011101111111
311022211110022122100022012
4101302022321112131333
5130010330324031421
62333231521441435
7154202542056353
oct21621271263577
94284408570265
101222101002111
114313211790a0
12178a271a027b
138b322341652
144321587b463
1521bca11a95b
hex11c8ae5677f

1222101002111 has 4 divisors (see below), whose sum is σ = 1333201093224. Its totient is φ = 1111000911000.

The previous prime is 1222101002099. The next prime is 1222101002137. The reversal of 1222101002111 is 1112001012221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222101002111 - 218 = 1222100739967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222101002611) 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, 55550045540 + ... + 55550045561.

It is an arithmetic number, because the mean of its divisors is an integer number (333300273306).

Almost surely, 21222101002111 is an apocalyptic number.

1222101002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222101002111 is a deficient number, since it is larger than the sum of its proper divisors (111100091113).

1222101002111 is a wasteful number, since it uses less digits than its factorization.

1222101002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111100091112.

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

Adding to 1222101002111 its reverse (1112001012221), we get a palindrome (2334102014332).

The spelling of 1222101002111 in words is "one trillion, two hundred twenty-two billion, one hundred one million, two thousand, one hundred eleven".

Divisors: 1 11 111100091101 1222101002111