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1222102121001 = 313211591319379
BaseRepresentation
bin10001110010001010111…
…101100111101000101001
311022211110101202012010120
4101302022331213220221
5130010331120333001
62333232001433453
7154202554426416
oct21621275475051
94284411665116
101222102121001
114313218727a3
12178a2763b889
138b322643a08
1443215a8d10d
1521bca28c236
hex11c8af67a29

1222102121001 has 16 divisors (see below), whose sum is σ = 1630889636160. Its totient is φ = 814024823040.

The previous prime is 1222102120957. The next prime is 1222102121027. The reversal of 1222102121001 is 1001212012221.

It is not a de Polignac number, because 1222102121001 - 217 = 1222101989929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222102121041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63053530 + ... + 63072908.

It is an arithmetic number, because the mean of its divisors is an integer number (101930602260).

Almost surely, 21222102121001 is an apocalyptic number.

It is an amenable number.

1222102121001 is a deficient number, since it is larger than the sum of its proper divisors (408787515159).

1222102121001 is a wasteful number, since it uses less digits than its factorization.

1222102121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36616.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222102121001 its reverse (1001212012221), we get a palindrome (2223314133222).

The spelling of 1222102121001 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred twenty-one thousand, one".

Divisors: 1 3 1321 3963 15913 19379 47739 58137 21021073 25599659 63063219 76798977 308378027 925134081 407367373667 1222102121001