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1222010112111 = 31655324608029
BaseRepresentation
bin10001110010000101011…
…110101000100001101111
311022211012222121122122220
4101302011132220201233
5130010134042041421
62333214513410423
7154200356366055
oct21620536504157
94284188548586
101222010112111
1143128493a098
12178a00869a13
138b30956a599
144320777c1d5
1521bc21653c6
hex11c857a886f

1222010112111 has 8 divisors (see below), whose sum is σ = 1629445314480. Its totient is φ = 814624158912.

The previous prime is 1222010112079. The next prime is 1222010112133. The reversal of 1222010112111 is 1112110102221.

It is a happy number.

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

It is not a de Polignac number, because 1222010112111 - 25 = 1222010112079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010112611) 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, 12254356 + ... + 12353673.

It is an arithmetic number, because the mean of its divisors is an integer number (203680664310).

Almost surely, 21222010112111 is an apocalyptic number.

1222010112111 is a deficient number, since it is larger than the sum of its proper divisors (407435202369).

1222010112111 is a wasteful number, since it uses less digits than its factorization.

1222010112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24624585.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1222010112111 its reverse (1112110102221), we get a palindrome (2334120214332).

The spelling of 1222010112111 in words is "one trillion, two hundred twenty-two billion, ten million, one hundred twelve thousand, one hundred eleven".

Divisors: 1 3 16553 49659 24608029 73824087 407336704037 1222010112111