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202202011121 = 1121671091001
BaseRepresentation
bin1011110001010000101…
…1011101010111110001
3201022220210202102212212
42330110023131113301
511303102203323441
6232520150501505
720415516510335
oct2742413352761
9638823672785
10202202011121
1178831844800
1233231064895
13160b55a6036
149b027237c5
1553d693beeb
hex2f142dd5f1

202202011121 has 6 divisors (see below), whose sum is σ = 222255103266. Its totient is φ = 183820010000.

The previous prime is 202202011111. The next prime is 202202011127. The reversal of 202202011121 is 121110202202.

It can be written as a sum of positive squares in only one way, i.e., 147176580496 + 55025430625 = 383636^2 + 234575^2 .

It is not a de Polignac number, because 202202011121 - 26 = 202202011057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202202011096 and 202202011105.

It is not an unprimeable number, because it can be changed into a prime (202202011127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 835545380 + ... + 835545621.

It is an arithmetic number, because the mean of its divisors is an integer number (37042517211).

Almost surely, 2202202011121 is an apocalyptic number.

It is an amenable number.

202202011121 is a deficient number, since it is larger than the sum of its proper divisors (20053092145).

202202011121 is a wasteful number, since it uses less digits than its factorization.

202202011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671091023 (or 1671091012 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202202011121 its reverse (121110202202), we get a palindrome (323312213323).

The spelling of 202202011121 in words is "two hundred two billion, two hundred two million, eleven thousand, one hundred twenty-one".

Divisors: 1 11 121 1671091001 18382001011 202202011121