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2011202002221 = 319239972115187
BaseRepresentation
bin11101010001000100111…
…110110001110100101101
321010021021010101112011020
4131101010332301310231
5230422420203032341
64135533342444353
7265206313644456
oct35210476616455
97107233345136
102011202002221
11705a45109965
1228594b5936b9
1311786a297459
146d4b250412d
15374b166e566
hex1d444fb1d2d

2011202002221 has 32 divisors (see below), whose sum is σ = 2835028531200. Its totient is φ = 1264704658560.

The previous prime is 2011202002213. The next prime is 2011202002283. The reversal of 2011202002221 is 1222002021102.

It is not a de Polignac number, because 2011202002221 - 23 = 2011202002213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011202002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011202002321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132421590 + ... + 132436776.

It is an arithmetic number, because the mean of its divisors is an integer number (88594641600).

Almost surely, 22011202002221 is an apocalyptic number.

It is an amenable number.

2011202002221 is a deficient number, since it is larger than the sum of its proper divisors (823826528979).

2011202002221 is a wasteful number, since it uses less digits than its factorization.

2011202002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25169.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2011202002221 its reverse (1222002021102), we get a palindrome (3233204023323).

The spelling of 2011202002221 in words is "two trillion, eleven billion, two hundred two million, two thousand, two hundred twenty-one".

Divisors: 1 3 19 57 239 717 4541 9721 13623 15187 29163 45561 184699 288553 554097 865659 2323319 3629693 6969957 10889079 44143061 68964167 132429183 147632827 206892501 442898481 2805023713 8415071139 35284245653 105852736959 670400667407 2011202002221