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2011022202121 = 28169671027223
BaseRepresentation
bin11101010000111010010…
…000111001010100001001
321010020210121001201210021
4131100322100321110021
5230422033140431441
64135503441020441
7265202001451102
oct35207220712411
97106717051707
102011022202121
11705962673439
122858bb324721
1311783bc6356a
146d49669d3a9
15374a09a53d1
hex1d43a439509

2011022202121 has 8 divisors (see below), whose sum is σ = 2018470506624. Its totient is φ = 2003575966560.

The previous prime is 2011022202113. The next prime is 2011022202131. The reversal of 2011022202121 is 1212022201102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2011022202121 - 23 = 2011022202113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011022202095 and 2011022202104.

It is not an unprimeable number, because it can be changed into a prime (2011022202131) 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, 1444116 + ... + 2471338.

It is an arithmetic number, because the mean of its divisors is an integer number (252308813328).

Almost surely, 22011022202121 is an apocalyptic number.

It is an amenable number.

2011022202121 is a deficient number, since it is larger than the sum of its proper divisors (7448304503).

2011022202121 is a wasteful number, since it uses less digits than its factorization.

2011022202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034471.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2011022202121 its reverse (1212022201102), we get a palindrome (3223044403223).

The spelling of 2011022202121 in words is "two trillion, eleven billion, twenty-two million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 281 6967 1027223 1957727 288649663 7156662641 2011022202121