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202120122222011 = 7231255404485851
BaseRepresentation
bin101101111101001111000010…
…000101100100010110111011
3222111122111100211122001010002
4231331033002011210112323
5202443014002242101021
61553512411410343215
760400461023002430
oct5575170205442673
9874574324561102
10202120122222011
1159446731808484
121a804297b8ab0b
1388a1acc131a16
1437ca947b53b87
15185791cb1650b
hexb7d3c21645bb

202120122222011 has 8 divisors (see below), whose sum is σ = 241037661283584. Its totient is φ = 165713392132200.

The previous prime is 202120122221977. The next prime is 202120122222013. The reversal of 202120122222011 is 110222221021202.

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 202120122222011 - 218 = 202120121959867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120122222013) 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, 627702242765 + ... + 627702243086.

It is an arithmetic number, because the mean of its divisors is an integer number (30129707660448).

Almost surely, 2202120122222011 is an apocalyptic number.

202120122222011 is a deficient number, since it is larger than the sum of its proper divisors (38917539061573).

202120122222011 is a wasteful number, since it uses less digits than its factorization.

202120122222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255404485881.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202120122222011 its reverse (110222221021202), we get a palindrome (312342343243213).

The spelling of 202120122222011 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, eleven".

Divisors: 1 7 23 161 1255404485851 8787831400957 28874303174573 202120122222011